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Test Paper :20Paper Type : Candidates ExperiencesPosted By : mahesh agrawal bit (durg)2009batch (c.g.)the whole selection procedure consists of written test n intrvu.Written test isaccording to given instruction in advertisement.for mech engg the R jain'sMechanical engg is d best boo .Question were directly from it .also concentreate onelectrical . a lot of que wre from this.i got selected in 2009 in frst attmpt.all d bst to u.

Test Paper :2Paper Type : Whole TestpaperTest Date : 31 October 2010Test Location : HaridwarPosted By : Pan aj

Hi,

I appeared for the BHEL ET Recruitment Test-2010-11 at Haridwar on 31st October2010.

My stream is Electrical Engineering.

I would li e to share my experience regarding this test.

The Aptitude portion (English, General math & Reasoning; 120 questions) was easy.

But, the Technical portion (Electrical (approx 80) & General Engg (approx 40); 120 questions) was difficult.

The questions of Electrical Engg. were previous years GATE questions .This unusua

l and unexpected question pattern surprised the candidates as the GATE questionsare lengthy and ta e time in solving (as 3 hrs are there for solving approx 65questions in GATE). These types of technical questions are not supposed to be as

ed in this type of test where you have to solve 240 questions in 150 minutes.

In ET Test-2009-10 the Technical questions were up to the standard and not too lengthy. Questions were based on concept and were of DEKHO- MARO type (My Copyright reserved JJJ ). No tiring calculations were required. But, the Non technical portion was difficult as compared to the Non technical questions of ET-2010 test.

Many of my friends appeared in ET Test- 2009.After ta ing experience from that test they started their preparation for ET-2010.They focussed their preparation on Non Technical area more than technical area.But, the unexpected pattern of que

stions put them in surprised state.

Therefore I thin to crac this test you have to ta e the following steps:

For Technical Portion

Completely solve all the chapters of ANY ONE OBJECTIVE Electrical Engineering GUIDE

J B GUPTA


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GALGOTIA PUBLICATION- OBJECTIVE Electrical Engg.

1) Solve all the objective questions which are at the bac of these boo s

P S BIMBHRA-ELECTRICAL MACHINERY

P S BIMBHRA-POWER ELECTRONICS

B L THERJA

C L WADHWA-POWER SYSTEMS

Go through the previous 10 year GATE questions which are conceptual in nature. You need not practice lengthy and calculative type questions because you can t solve them in this test as the time is quite meager. Better leave such questions andmove forward.

For General Engg: Basic Physics & Mechanical Engg.For Non Technical Portion

Golden Rule: Attempt Non Tech portion first.

Questions would be on basic maths and reasoning. Try to attempt as many here.

There are only three ways to bring proficiency in non technical area.

Practice

Practice

Practice

Boo s recommended are:-

1. M Tyra

2. Made Easy: Aptitude and Reasoning Boo

3. Baron s GRE (Comparison type i.e inferential questions) 20 questions will be from this boo .

For Reasoning you may refer any boo li e Ban ing recruitment Guide,

MAT Guide etc.

For English: Be thorough with basic grammar and have good reading s ills.


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Hope you will be benefitted by reading this.

Best of Luc .

Than s & Regards

Pan aj

Engineer Trainee - 2011

BHEL

pan [email protected]

Test Paper :3

Paper Type : Candidate ExperiencesTest Date : 12 September 2010Test Location : BangalorePosted By : ZabeeullahBHEL Placement paper120 from Technical Side (60 from Electrical Engg & 60 from General Engg)120 from Non Technical Side (35 from English, 35 from Aptitude & 50 from Maths)

Technical Paper is purly Numerical Based and contains the questions li e below:

Electrical Engg paper has around1) 15 Questions from Electrical Machines out of this 10 numericals.2) 8 Numericals from Control System

3) 4 Numericals from Instrumentation4) 15 Questions from Electrical Power out of this 8 numericals5) 8 Questions from Circuit and field theory6) 10 Questions from Electronics (Power & Digital)

General Engg paper has around1) 35 Questions from mechanical engg2) 15 Questions from Physics3) 10 Questions from other general enggNon Technical paper is very easy.To solve this paper, speed contains an important factor. We have only 35 secondsto solve a question.So be fast and All the Best

BHEL Placement Paper:

1)Unit of Entropy (J/ g K or J/ g K)?

2)A mass of 100 g is falling from a height of 1 m and penetrates the sand into for 1 m. What is the resistance force given by sand?

3)Ratio of specific heats of air ? (1.41)


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4)A body weighs 3 g in air. If it is submerged in a liquid, it weighs 2.5 g. What is the specific gravity of the liquid ?

5)Two cars travell in same direction at 40 m/hr at a regular distance. A car comes in a opposite direction in 60 m/hr. It meets each car in a gap of 8 seconds.What is the distance between them?

6)A simple problem involing in hoops stress. For sphere: M= [3/2]*p*V* [densityof pressure vessel material/Maximum wor ing stress it can tolerate] For Thin walled pressure walls: Hoops stress or stress in the radial direction =p*r/2t?

7) A problem in force calculation in a body moving in a inclined surface?

8)Composition of bronze?ans. Copper+zinc.

9) Compostion of stainless steel.?ans. iron+chromium+nic el+carbon.

10) CI is manifactured in which process?ans. cupola process

11)What percentage of carbon is preset in pig iron?ans. 4.5 to 6%.

12)Water is available at 10m height. What is the pressure available?ans= pressure=density*g*height;p=1000*9.81*10;p=98100N/m2.

13)What will happen if the speed of the centrifugal pump doubles?

14)The unit eV is widely used in ?ans. Nuclear and atomic physics.

15)What will happen to the resistance, when the diameter of the conductor is doubled?

16)The power comsumed by a electrical device is 1000W at 250V, What is the resistance in the device?ans. Power= Voltage*current,Current=Power/Voltage,Current,I=1000/250=4amps. V=IR,Therefore R=250/4=62.5 ohms.

17)Why DC current is not used in transformer?

18)On what principle the sonar/ radar wor s?

19)Bending moment diagram for the UDL is in what shape?

20)Function of the distributor in petrol vehicles?ans. Spar timing.

21)Which is not present in CI engines?ans. carburrettor.

22)What will happen if one cylinder recieves more amount of fuel spray from injectors than other injectors?


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23)Purpose of draft tube in hydraulic turbines?

ans. The purpose of a draft tube is toconvert some of the inetic energy of theflow from the runner (the rotating part of the turbine) intopressure energy andthereby increase the efficiency ofthe hydro power turbine.

24)What is the effect or reheater in the gas turbine?

The advantage of reheater is significantly increased thrust; thedisadvantage is it has very high fuel consumption and inefficiency.

25)Problems involving with fricition coefficient.

26)Factor of safety = Yeild stress/Wor ing stress.

27)Which is the example of non parallel power transmission (Universal coupling)?

28)For perpendicular shafts worm gear is used?

29)A planet gear with 25 teeth is meshed with a sun gear of 100 teeth. Both areconnected using a arm. How many rotations are needed for planet gear to completeone rotation around the sun gear?

30)What is equivalent spring constant for spring in parallel?31) Some questions was as ed related to boundary layer and vortex flow.

Test Paper :6Paper Type : Technical - ElectronicsTest Date : 31 October 2010Test Location : SRM University ChennaiPosted By : S.Go ul

Hi Friends,On October 31st I have written the exam of BHEL In Chennai. The entire test paper consisted of 240 questions with 5 options for each question and -1/5 mar s forwrong answer with 1 mar for right answer. My Stream is Electronics

The paper consisted of primarily four sections

1) Technical Engg (60 Questions)2) Basic Engg (60 Questions)3) Verbal Ability (60 Questions)4) Quantatitive (60 Questions)

A) Technical Engineering (Electronics)

It consist of simple basics questions in the electronics field subjets li e electronics circuits, lic, communication system, control systems, microwave, eletronics devices, signals and system, analog circuits, digital circuits

Some questions that as ed in that exam are


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1) Sampling theorem is used in what? (AM, FM, PCM, AM & FM)

2) What is the bandgap of germanium?

3) Which of the following elements is used for ma ing P-type semiconductor material from intrinsic semiconductor? (Phosporous, Boron, Gallium, Gallium Arsenide)

4) Question on the power of the SSB signal of AM write to given modulation index.

5) Modulation Index of AM, FM, PM

6) Question on the values of damping factor for critically damped, underdamped,overdamped systems.

7) Which of the following modes do not exist in wave guides? (TE1, TM1, TEM1,)

8) What is the band used to send the AM signals (HF, VHF, SHF, UHF)

9) The intermediate frequency of am signal is

10) Which damping condition is normally used

11) Conversion of binary to gray codes and 2 complements sums, gate questions

12) Which oscillator is stable

The questions is 80% theory only just go through the boo s li e g publishers boo galgotia publications from these boo s they as ed more questions.

B) Basic Engineering (Most of the questions were from physics,chemistry)

1) Questions on the friction.

2) Which type of steel is used in railway line among carbonsteel, mild steel?

3) Questions on specific gravity.

4) What is the optimum humidity to be provided by a Air Conditioner

5) Red +green gives which colour


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6) Twins ores are, which is the hard iron ore, sound is high in, 1 ton is equalto

7) What is the weight of 1 cubic meter air?

For these type of questions just go through fundamentals in 10th standard

C) Verbal Ability

1) 10 Questions on spell chec

2) 6 questions on comprehension paragraph

3) 10 questions on sentence correction

4) 10 questions to chec whether the two statements given are implicit, explicitor imply each other.

5) Questions relating to relationships

For this section you go through some ban po questions ban

D) Quantitative Ability

1) 20 questions on match the following in these you want to strong in basic mathematics

For these quantitative section you just go through qui er mathematics boo s

E) reasoning Ability

1) Average proportions based questions; age problems simple problems only

2) Wor completed by 10 people in 5 days then 20 people will complete in how many days?

3) Direction sense test, word problems, coding, stament conclusions and assumptions

For this section just go R.S Aggarwal boo s solve some ban reasoning problems

I thin I give some valuable information to you about the exam be cool when youare attending the exam. Thin positive you need more time consumptions for thatpractice in your home. God be with you i'm wishing. All the best to your great success!


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RegardsS.Go ul

For queries fran ly mail me to [email protected]

Test Paper :7Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : St Josephs High School, BangalorePosted By : Raghunath

Hi Friends,On October 31st I have written the exam of BHEL In Bangalore. The entire test paper consisted of 240 questions with 5 options for each question and -1/5 mar s for wrong answer with 1 mar for right answer.

The paper consisted of primarily four sections

1) Technical Engg (60 Questions)2) Basic Engg (60 Questions)3) Verbal Ability (60 Questions)4) Quantatitive (60 Questions)

A) Technical Engineering (Electronics)

1) Sampling theorem is used in what? (AM, FM, PCM, AM & FM)

2) What is the bandgap of germanium?

3) Which of the following elements is used for ma ing P-type semiconductor material from intrinsic semiconductor? (Phosporous, Boron, Gallium, Gallium Arsenide)

4) Question on the power of the SSB signal of AM wrt to given modulation index.

5) Modulation Index of AM, FM, PM

6) Question on the values of damping factor for critically damped, underdamped,overdamped systems.

7) Which of the following modes do not exist in wave guides? (TE1, TM1, TEM1,)

8) What is the band used to send the AM signals (HF, VHF, SHF, UHF)

9) Which of the following waves have maximum frequency? (X-Rays, UV rays, Radiowaves, Infrared waves)

10) What is the metal where X-Rays cannot penetrate into? (Copper, lead, Tungsten)

B) Basic Engineering (Most of the questions were from 12th class physics, chemistry)

1) Questions on the friction.

2) Which type of steel is used in railway line among carbonsteel, mild steel?

3) Questions on specific gravity.


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4) What is the optimum humidity to be provided by a Air Conditioner?

5) What is the weight of 1 cubic meter air?

6) Questions on centripital force.

7) Questions on pendulum.

C) Verbal Ability

1) 10 Questions on spell chec

2) 6 questions on comprehension paragraph

3) 10 questions on sentence correction

4) 10 questions to chec whether the two statements given are inplict, explicitor imply each other.

5) Questions relating to relationships.

D) Quant Ability

1) 20 questions on match the following (very easy ones)?

2) Average proportions based questions

3) Wor completed by 10 people in 5 days then 20 people will complete in how many days?

4) Age related questions.

Overall the paper did not loo much li e a technical one as more stress was given in other sections (75% of the paper).One of my friend who is strong in quantatitive and verbal was called for the interview. Wish Luc for him.Than you hope one of you people will be meeting him in BHEL.

Test Paper :8Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Kol ataPosted By : Mayan Kumar

Hello everyone, i gave the BHEL exam for et on 31st Nov my branch is electronics.Here are the questions i can recollect,

1) Why Mn is added in steel.

2) Purest form of iron.

3) Rail uses which type of steel.

4) Which of the metals is the poorest conductor of electricity(copper,silver etc.)


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5) Laplace transform of a dirac delta function.

6) LVDT measures-

7) Enhancement mode occurs in which device(Jfet,bjt,mosfet,UJT)

8) Polyethene has what type of structure

9) Which of the materials is made of silica(glass,diamond)

10) Which of the materials has the least hardness(diamond,quartz,talc)

11) Which amplifier has more efficiency than class b amplifier

12) Space waves belong to which frequency range(vhf,uhf)

13) Permissible humidity in an air conditioned room

14) If S/N=43.25 db,no of levels

15) In radio receivers,Maximum image signal selectivity provided in which state-rf amplifier,i.f.amplifier,audioamplifier,frequency mixer.

16) One of the following cannot be used to demodulate ssb-product detector,diodebalancedmodulator,bipolar transistor balanced modulator,complete phase shift generator.

17) Which of the following is not maxwell's equation-(a)b=uh (b)E=D/e (c)E=ed

18) VSWR

19) Sampling thereom is used in -fm,am,pcm

20) How many bits are used to address 64 memory location-3,10,16,32

21) Which of the foll flip flops is used as a latch-ttl,ecl,cmos,lsi

22) The sum s of a and b in a half adder can be implemented by using nand gates.the value of is -3,4,5,none of these

23) The most widely used bipolar technology for digital ic's is-dtl,ttl,ecl

24) Class b amplifiers has less efficiency compared to -class A,class AB,class C,class A,AB and C

25) Which of the following is the most stable oscillator-wein bridge oscillator,hartley oscillator,colpittsoscillator.

26) In case of rc phase shift oscillator,the frequency of oscillations is givenby-1/(2TT*6^1/2*RC),1/(2TTR*C^1/2,2TT/(RC)^1/2,2TT*(RC)^1/2

27) Bar hausen criterion for oscillator frequency is -AB=0,AB=1,AB=-1.

28) The standard if value for am receivers is-455 hz,455 mhz,107 hz,10.7 mhz

29) In a radio receiver the noise is generally increased by -mixer,local oscillator,power amplifier,power


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supply.

30) During the day time,ionosphere composes of -d,e,f2 layer;d,f1,f2 layer;d,e,f1,f2 layer.

31) When the modulating frequency is doubled,the modulation index is halved andthe modulating voltageremains constant.the modulation system is-am,fm,pm,any one of them.

32) Octave frequency range is specified by - w2/w1=2,w2/w1=10,w2/w1=8.

33) The gain margin is the reciprocal of the gain at the frequency at which thephase becomes-0,90,180,270.

34) The foll system is generally preferred-overdamped,critically damped,underdamped,oscillatory.

33) The response of a control system having damping factor as unity will be- oscillatory,undamped,criticallydamped,none of the above.

34) The foll. compensator is used to increase the damping of a heavily under damped system-phase lag, phase lead,phase lag lead, none of these.

35) In the characteristic eqn. 1+ /{s(s+1)(s+2)}=0,the centroid of the asymptotes is given by-1,-1,2,-2

36) Depth of modulation.

37) 3 zener diodes having the brea down voltage 6 v in series,resultant voltage-6 V,18 V.

38) Fermi level in ge-0.67,1.2ev

39) which of the following plot can be directly used to determine B-Vce versus Ic for constant Ib,Vbe versusIb for constant Vce,Vcb versus Ic for constant Ie.

40) A DVM measures-pea value,r.m.s. value,pea to pea value,average value.

41) An ideal current controlled voltage source has-Ri=infinite,Ro=infinite;Ri=0,Ro=infinite;Ri=0,Ro=0;Ri=infinite,Ro=0.

42) Rotameter used to measure-flow,rotations

43) Diff between true value and indicated value-static error,dynamic error,absolute error

44) No of 2:1 mux needed for 4:1 mux-2,3,4.

45) red+green-blac ,violet.

46) Superconductivity means conductivity-infinite,0.

47) Frequency of TE11 wave.

48) Process is irreversible if efficiency->50%,


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part because that was pretty straightforward. Hope it is useful for future BHELaspirants and hope i don'tneed this to come to my aid in the future.

Test Paper :9Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Jntu HyederabadPosted By : Muppa Ven atHai Guys,BHEL exam paper contains three sectionsI wrote examination in electronicsIt contains 240 questions

Section1: 60 questions in electronics

1) Very simple questions1n type which material is used?

2) Ground wave ,s y wave,space wave range of frrequency?

3) pcm s/n ratio ?4) Quntisation level in pcm?

5) 3 zener dides r conected in series wwith a power supply of 24 volts ,what isbrea down votage voltageof each diode?

6) Am equation, pwer caluculation 3 questions?

7) fm modulating index one problem beta=deltaf/fm

8) Doping one problem?

9) lvdt application?

10) How many 2:1 mux requoired to construct exor and nand gate?

11) Sign magnitude addition 1 problem?

12) Address bus width of 64 ?

13) 8085 addresss bus width?

14) Maxwell equations 1 question?

15) Group velocity one question?

16) laplcce transforms 2 questions?

17) Conrol system stability 2 questions on root locus

Section2: 60 questions general engineering (which contains material science, mechanics, intermediate physics)

1) Water density is max at what temp?


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2) Rail strips r manufactured with this alloy?

3) Entroy,specific heat ,centre of gravity some questions ?

I don't remember exactly this section because i am very new to this section?Setion3 40 englisgh, 40 aptitude, 40 reasoning

Aptitude

1) Calender 1 question?

2) Ages 4 question?

3) Relations 4 questions?

4) Synonyms 5 questions?

5) Sentence correctoin 5 questions

6) Passage 5 questions

7) Directions 4 questions?

8) 5 correct pronounciations of words?9) a a


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Hi Friends,

I have attended for BHEL have attended for BHEL engineer written test conductedon 31st Oct 2010 at Nagpur. I'm from Ece branch. Here are some question which iremembered.

There are 240 quesiton each quesitons carries 1 mar s 0.20 negative time 2.30 hours.

1) Bar hausen criterion of oscillation is

2) Class b amplifier has less efficiency compared to

3) Which of the following can be used to determine beta B

4) A current controlled current source is input resistance and output resistance

5) Which is most stable oscillater crystal oscillator

6) Formula of rc phase shift oscillator

7) Forbidden gap of germanium

8) 6 diodes are connected in series with 6v each then brea down voltage will have

9) Which will have least distortion phase distortion

10) Which of the following the intrinsic semi conductor si is doped to obtain ptype semicoductor?

11) In metal conductivity is?

12) Speech amplifier is of which class type of amplifier?

13) Which of the following is not specified for digital logic familybandwidh14) Mod 6 counter requires how many states

15) Which logic family is wor in non saturated mode?

16) Simple question on control li e steady state response,delta function its laplace transform

17) Answer with infinity value indicates?

18) Which wave guide doesn t exist?-->tem

19) Question on Maxwell question?

20) Frequences in UV range are propagated by means of?

21) Given the values of modulation index u1 and u2 find overall efficency?

22) In bode plot w2/w1 decade indicates?

23) Basic question in aptitude sufficient R.S Aggarwal see Ran sequence, Bloodrelation, odd term out, statement conclusion, complete sentences, problem on age


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s, direction problems,

24) Last 20 question on comparison refer barron boo or see it's PDF in net.

25) General question li e railways trac s are made up of, concurrent lines means, tenstile strength, refrigenation li e how many tones requires, learn basic question on chemistry.

"All the best for future aspirants"

By

An it hetrapal

Test Paper :11Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Kol ataPosted By : Mayan Kumar, jsplHello everyone, I gave the BHEL exam for ET on 31st Nov. my branch is Electronics. I assume you no the pattern, 240 questions, 150 mins, 120 non-technical, 60 t

echnical, 60 General engineering.Here are the questions i can recollect:

1) Why Mn is added in steel.

2) Purest form of iron.

3) Rail uses which type of steel.

4) Which of the metals is the poorest conductor of electricity(copper, silver etc.)

5) Laplace transform of a dirac delta function.6) LVDT measures.

7) Enhancement mode occurs in which device(Jfet, bjt, mosfet, UJT)

8) Polyethene has what type of structure

9) Which of the materials is made of silica(glass, diamond)

10) Which of the materials has the least hardness(diamond,quartz,talc)

11) Which amplifier has more efficiency than class be amplifier

12) Space waves belong to which frequency range(vhf, uhf)

13) Permissible humidity in an air conditioned room

14) If S/N=43.25 db,no of levels

15) In radio receivers, Maximum image signal selectivity provided in which state-rf Amplifier, i-f amplifier, audio amplifier, frequency mixer.


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16) One of the following cannot be used to demodulate ssb-product detector, diode balanced Modulator, bipolar transistor balanced modulator, complete phase shift generator.17) Which of the following is not maxwell's equation-(a)b=uh (b)E=D/e (c)E=ed

18) VSWR

19) Sampling thereom is used in -fm, am, pcm

20) How many bits are used to address 64 memory location-3,10,16,32

21) Which of the foll flip flops is used as a latch-ttl, ecl, cmos, lsi

22) The sum s of a and b in a half adder can be implemented by using nand gates. The value of is -3,4,5,none of these

23) The most widely used bipolar technology for digital ic's is-dtl,ttl,ecl

24) Class be amplifiers has less efficiency compared to class A, class AB, classC, class A, AB and C

25) Which of the following is the most stable oscillator-wein bridge oscillator,hartley oscillator, colpitts oscillator.

26) In case of rc phase shift oscillator,the frequency of oscillations is givenby-1/(2TT*6^1/2*RC),1/(2TTR*C^1/2,2TT/(RC)^1/2,2TT*(RC)^1/2

27) Bar hausen criterion for oscillator frequency is -AB=0,AB=1,AB=-1.

28) The standard if value for am receivers is-455 hz, 455 mhz, 107 hz, 10.7 mhz

29) In a radio receiver the noise is generally increased by -mixer, local oscillator, power amplifier, power supply.

30) During the day time,ionosphere composes of -d, e, f2 layer; d, f1, f2 layer;d, e, f1, f2 layer.

31) When the modulating frequency is doubled,the modulation index is halved andthe modulating voltage remains constant.the modulation system is-am,fm,pm,any one of them.

32) Octave frequency range is specified by - w2/w1=2,w2/w1=10,w2/w1=8.

33) The gain margin is the reciprocal of the gain at the frequency at which thephase becomes-0,90,180,270.

34) The foll system is generally preferred-overdamped, critically damped, underdamped, oscillatory.

33) The response of a control system having damping factor as unity will be Osci

llatory, undamped, critically damped,none of the above.

34) The following compensator is used to increase the damping of a heavily underdamped system-phase lag, phase lead, phase lag lead, none of these.

35) In the characteristic equation. 1+ /{s(s+1)(s+2)}=0,the centroid of the asymptotes is given by-1,-1,2,-2

36) Depth of modulation.


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37) 3 zener diodes having the brea down voltage 6 v in series, resultant voltage-6 V, 18 V.

38) Fermi level in ge-0.67, 1.2ev

39) Which of the following plot can be directly used to determine B-Vce versus Ic for constant Ib, Vbe versus Ib for constant Vce,Vcb versus Ic for constant Ie.

40) A DVM measures-pea value,r.m.s. value,pea to pea value,average value.

41) An ideal current controlled voltage sourcehas-Ri=infinite,Ro=infinite;Ri=0,Ro=infinite;Ri=0,Ro=0;Ri=infinite,Ro=0.

42) Rotameter used to measure-flow,rotations

43) Different between true value and indicated value-static error, dynamic error, absolute error

44) No.of 2:1 mux needed for 4:1 mux-2,3,4.

45) Red+green-blac , violet.

46) Superconductivity means conductivity-infinite, 0.

47) Frequency of TE11 wave.48) Process is irreversible if efficiency->50%,


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Ans: w/(s2+w2)impulse response of 1/(s+1)(s+2)

6) Two very simple questions on thevenin where two resistor connected in parallel and a voltage source and across one of the resistor find out Vth and Rth

7) Then as about networ topology where a node is connected with three branchesand two branches have current 5A and 10A find out third branch current.

8) Some portion of simple mathematics as li e find out eigen value where givena matrix [5 3 ]Ans is (6,4)[ 3 -3]Also as about maxima f(x)= x-0.5x2 ans is 0.5

9) What is phase cross over frequency of /s(s+1)(s+2)

10) Sumpner's test in transformer is for detecting no load losses.

11) House hols fan has which type of motor ans is capacitor start and run induction motor.

Friends several questions are numerical based that i never attempted as time isnot more to understand and solve

120 questions from technical and 120 from aptitude were as ed.

In aptitude 1,3,6,10,15 what is 21st term

Some questions so much difficult some very easy but it requires speed try to catch easy questions and solve within seconds.

Verbal reasoning they as ed about statement conclusion, spell chec , logic reasoning li e tree: Trun then pen: in and

Venn diagram for e.g.

1) Men, parents, mother2) Atmosphere, gases, nitrogenHere you have to find relation between them and which venn diagram suitable forit will be the option.In english passage, spotting the error, antonyms

All the best!

Test Paper :13

Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Paul school, BhopalPosted By : Priya Shu la

Hello Everyone,My name is Priya Shu la, i have done my Engineering. In Mechanical Engineering branch in 2010. In the written test they were as ed basic question related to electronics, mechanical, computer branch. So tried to over all basic question andalso 12th class physics, chemistry subject


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I would li e to give you the details of the written test. It comprises of 2 sections technical (120) and aptitude (120), total 240(Test duration 150 minutes). Aptitude section is so easy prepare by pratiyogita darpan

This section is very easy that you can start of the exam with.

Hope this is helpful to you all.

All the best!

Test Paper :14Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : BIT BangalorePosted By : AbhilashMy discipline was mechanical.

240 questions 150 mins.No extra omr wil be provided.So be careful in filling the details.

They too the question paper & permission slip with them after the exam.Questions in English & Hindi.

240 questions, first 120 technical.Mainly from heat and mass transfer problems.* Thermodynamics.* Pan s energy equation.* Column equation.

Then some electronics questions half adder full adder etc.Some electrical circuit questions.Some questions from DBMS, computer basics.

Technical section mainly problems.Problems wil be easy for prepared students.Some questions couldn't answer without calculator.They provided those questions to waste our time.

No general nowledge questions.

English aptitude.Spot the error.Select the opposite words.Spelling mista e chec .2 paragraph comprhnsn. (3+3) 6 questions.

Mathematics aptitude.Find ran of matrixFind eigon vector.Ven diagrams.1 question from sets.Area of circle, rectangle square type problems(simple).Basic trignometry.Simple interest.

Eg: Find the value of 1032 - 532.


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Last 60 questions very very very easy.8th standard students can solve those questions.But the problem was most of the students waste their time infront of technical problems.So start answering from last section.The Results will publish within 15 days after the exam.

Test Paper :15Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : SRM University, ChennaiPosted By : ShaliniHi All,I attended the written test for Engineer Trainee(ET) conducted by BHEL on 31 Oct, 2010.Technical-120 questions + (aptitude+general english)-120 quesitons

My Stream is ElectricalThe question paper contains electrical questions+ electronics questions + instumentation + basic computer questions

Mostly Questions are li e problematic.Example:

1. Algorithm is used for2. Order of database3. Motor used in house hold fans

Electrical questions are easy to attend.Electronics part is a bit difficult for me

General english containsSpell checMeaning

But very easyAptitude and general english part is dead easy. Should manage the time for boththe sections don't get struc with a single question.My advice is prepare well and do the wxam with perfect time management.

Test Paper :16Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : New Delhi

Posted By : Atul Tha urBy the time you are reading this i thin you have filled the application for ofBHEL a very renowned PSU and searching over for some help. I can provide some ofthe information which i feel you should now. First of allPattern of the test: 240 questions in 150 minutes (120 tech+ 120 non-tech).

Technical Section:

For Electrical fellows:Subjects to watch for: Machines(Transformer basics, Induction motors) Measureme


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nts (no specific chapters )+++ Mechanical Engineering. Basics which was in 2010carried 25-30 mar s!

Non-tech section:Be fast and furious in solving these questions as they are as simple as that youcan't even imagine!

Test Paper :17Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Test for ET in TrichyPosted By : SrinivasHi Friends,

I've attempted BHEL (ET) in Mechanical. It was too tough to attempt questions from Technical Part. Test Paper consists of Technical(60), General Engineering(60), Aptitude + V, NV(120). Total 240 Questions in 2.30 hours.In Technical concentrate on HT, SM, DMM, TD, PROD.

Aptitude: concentrate more on surface area, volume. One question from Simple Interest, Boats and streams.

Verbal & Non Verbal: Correction of sentences, analogy, puzzle test.

General Engineering: Major part from Basic Electric Engineering; CS-2 questions,Engg Maths: 3 to 4 Questions.

All the best!

Test Paper :18Paper Type : Candidate ExperiencesTest Date : 29 November 2010

Test Location : MumbaiPosted By : Ajay Gupta

For Mechanical Engineers only (prod.,manuf.,indust. etc.)

For those who really want to ma e a difference in this exam in very short term preparation this will be the page that will help you the most.

(Paper pattern etc. (Go through BHEL web site)(120 Techncial(60 Mechanical(10-15Thermal, 5-10 design, 20-25 production technology, 15-20 Strength and design, 10- no idea); 30- 12th class; 20-electrical); 120 non technical (Very easy but atthe same time very much time ta ing)

Method 1: Practice, practice, practice,. Till die (I have seen these superman inhere during training)

Method 2: (My way)1. RK JAIN theory memorize all theory (leave some which you thin you can not handle)2. Try to search basic of every topic of mechanical from net / wi i go through it.3. Do not leave any section as a whole from mechanical questions will be very simple from all basics of engineering (except 1 or 2)


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4. Quantitative. will be very lengthy in 2 hours you will be able to do only 100-120 you need to grasp all mechanical because the questions from this section can be solved in very short time li e 75 in 60 mins (or exceptional data: 95 in 75 min)

5. Use your time li eMechanical - 1.25hr to 1.5 hourNon Technical - 1.5 hr to 1.75 hourUltimately the decision of selection will be on technical because everyone willbe able to solve non technical (Difference will as low as 5 to 10 problems between two persons in non tech) in technical the difference will be 30 to 40 problems between two guys so do not leave technical.

Test Paper :19Paper Type :Test Date : 16 January 2010Test Location : near BHEL township,noidaPosted By : ashutosh mishra

Hello everyone,My name is Ashutosh mishra, i have done my engineering from JSS academy of technical education, Noida. In Manufacturing technology branch (an allied branch of mechanical engg) in 2009.

BHEL recruits passsout students only in offcampus open test, in the written examthey as for technical as well as non-tecnaical questions,

Interview:There were 5 people in the panel, all aged., technical + HR people.

It too around 10-15 mins fot 1 interview.

1) Tell us about urself.2) Your favourite subjects.(mine was manufacturing and engineering drawing)3) What is paper less manufacturing?4) What is group technology?5) Tell us some diffrences btn CNC & DNC,apart from full form.6) What is the function of turbine?7) What are the products which BHEL manufacture?8) Does it sets up power plant?9) What is transfer machinng?10) Will you relocate to Trichy,if posted to?No ques was as ed from engineering drawing.

I have appeared for a lot many interviews, and i have noticed that they as manu

facturing people about 90% of questionsfrom manufacturing only. So be thorough as a manufacturing engg rather than a mechanical engg, remaining depend on your luc .

I' m now part of BHEL family.Than s to dear GodAll the best for future aspirants.


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Test Paper :21Paper Type : General - otherTest Date : 10 August 2008Test Location : Andra Education Society, New DelhiPosted By : Gaurav Singh

BHEL PAPER ON 10th AUGUST AT NEW DELHI

Hi friends I am Gaurav Singh from inderprashta engg college MECHANICAL engg.i ama 2008 batch pass out. I gave BHEL exam on 10aug 08 in delhi.it was all India level exam.To tell you first BHEL has a certain cut off system for the candidates.

For Mechanical the cut off :

General -------- 72.30 %

OBC------------ 70 %

SC--------------- 60 %

ST--------------- 60 %

If u r shortlisted then you will called to sit for its first phase which is allIndia written exam.

WRITTEN EXAM --- Mechanical engg

There are generally two sections:

First : quantative & aptitude 120 quesSecond: Mech engg 120 ques

There are individual cut off for both and total cut off..well don t worry soon I will let you no how to attempt ques

Try starting the paper frm quant section.attempt atleast 85 ques..out of which 70 must be correct.study geometry formulae.average,profit loss.in simle study RS

Agarwal.

Now in Mech engg . solve atleast 85 ques.out of which 55 must be correct.on andoverall the attempt shud be more..solve that ques first which u thin u wil do it instantly.dont waste time on tough ques..find easy ques in paper.this time there were 15 ques based on electrical engg. Ques were simple li e finding power factor..study matrix and vector of class 12.cross and dot product formulae. Ques were mainly from FLUID, THERMAL, two-three welding technology ques, PRODUCTION. P


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urchase R.K JAIN the best boo to get through PSU.

WELL the result of written came on 27 aug. My interview was at INTER CONTINENTALHOTEL, new delhi on 9 sept 08.wat a seven star hotel it was.i still remember the ind of hospitality BHEL has planned for the interview candidates.A staff ofa hotel will be boo ed to loo after the interview candidates.they as me to report at 9 am.they served me coffee, snac s..it was just ept on the table.drin as many tea or coffee.many flavours were there.well not spending more time on this.

I was the first candidate to be interviewed..luc ily I have secured good ran inmerit. You will meet people from all parts of the nation there in interview.interviewies were conducted from 5 sept to 15 oct.

There is a panel of 6 people. in mine there was one lady also.the chairman , twopeople from any good institutions li e IIT or DCE.,one frm BHEL, one psychologist.

Dont worry they will eep u relax throughout. My area of interest was FLUID AND thermal engg

Some ques are:

1. what is your name

2. Tell me about ur family bac ground

3. how is steam generated at wat temp and press.? wat is specific heat.4. what is bac pressure turbine,

5. how do u govern turbine

6. name different turbine.which turbine at bha ra dam.

7. parts and fuel for gas turbine

8. wat do u now about BHEL

9. your vision for INDIA 2020

10.how does inflation effects you

11. wat is GDP

12. How is electricity produced

13. wat all can be done from hydrogen.

14. WAT is the effect of temp on viscosity of a lubricant ?


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15. wat will happen if petrol is inserted in a diesel car ?

My interview was held for about 35 min..since I was first they spend so much time on me..but rest interview was around 15 min.

I answered each and every ques.prepare for interviews as soon written result come out.

Read these topics1. power plant2. thermal engg3. welding4. fluid machinery.

Results for this came on 18 oct 2008.i thin I am luc y.my joining is in BHOPAL4 nov at Heavy electrical plant, BHEL I was selected.than s to GOD , my parents,teachers and my friends who helped me lot.

All the best !!!!

Test Paper :22Paper Type : General - InterviewTest Date : 15 September 2008Test Location : BHEL, EPD, BangalorePosted By : Shilpa

BHEL PAPER ON 15th SEPTEMBER AT BANGALORE

BHEL Interview for Engineer Trainees- 2008

I have attended BHEL off-campus interview for the post of Engineer Trainee-08 conducted on 15th Sep. in Bangalore .I belong to Electronics and communication branch.

Well the written test was conducted on 10th Aug. and the results are disclosed soon on 20th Aug. As far as I now BHEL started calling people for interview from8th Sep. They have set up 3-4 panels, in Bangalore , New Delhi , Kol ata, restno idea.

They have called people in morning and afternoon shifts, nearly 15-16 people per


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shift. We were as ed to bring interview call-letter, biodata form, TA form, alloriginal mar -sheets and one Xerox copy of all. When we reached the venue, first they verified all documents. SC/ST people have to show original caste certificate. They have a list of central reserved castes and your caste serial no. willbe verified with that. The traveling allowance will paid there itself to all. After that we were made to sit and wait for our turns.

About biodata form

They will post it in web site, it has all relevant information about you similarto a resume, (so we do not need any resume there) li e your name, address, allsemester mar s details, 10-12th mar s, college, area of interest, main subjectsin semesters, your current job profile, have you appeared for any other govt./PSU exams etc.

While preparing for interview, everybody told me to stress on technical and final year project and for HR questions, but that proved wrong. My timing was in theafternoon shift at 2 pm, and I was called nearly at 3.30 pm. There were 3 people in the panel. They seem to be very experienced ones.

They started with the question

Q. Why I want to join BHEL.

Though I was not prepared for this question, as I was expecting technical questions, but I tried answering that I always wanted to join BHEL, I am very adjustable, and I can perform well in the areas in which they will train me. But the people were not much satisfied; they also as ed me to give a solid example for myadjustability.

Q. They as ed about my family, father s job, brother-sisters etc..

The people seem to be very lenient while as ing, infact some-times I felt that they are not ta ing any interview. We were simply chatting, laughing in the interview room.

Q. Next they as ed what preparations I have done for the interview.

I told I have chec ed the BHEL s site and collected some information about it. Next I have prepared my area of interest i.e. Digital electronics. My 2nd area of interest was Microprocessors 8085 and they started with that.

Q. What do mean by 8085.

I told it s the serial no. of the device given by the company Intel. But they werenot satisfied and told it must have some meaning. I told may its 8 because it s a8-bit processor and about other digits no idea.

Q. How many types of microprocessors do we have?

I told 8 bit, 16 bit, 32 bit.

Q. Do we have any 64 bit processor?


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I never heard of it so told so.

Q. What is RISC/CISC?

I answered RISC is reduced instruction set computing and CISC is complex instruction set computing.

Q. What s the difference between them?

I told RISC is generally used for high speed switching operations and CISC is for general purpose li e 8085.

Q. Do we use microprocessors nowadays?

I told we generally go for microcontrollers these days.

Q. What are microcontrollers?

I said it has memory inbuilt in it apart from microprocessor architecture.

Q. What do you thin the CPU we use has microprocessor in it.

I told it has but not only microprocessor. It has other components also.

Q. What do you thin the other components are?The answer of this question doesn t clic me there so I told no idea.

Q. What do thin Pentium uses RISC or CISC?

I was not sure with this so answered we can use RISC

Q. They told don t tell we can, what we exactly use

I told truly that specifically I don t now.

They stopped with this. I felt that they were not very specified with some questions but the best part was I never go nervous and maintained a smile through-out. They have not at all mentioned about final year project or any other curriculum subject. My advice to electronics people is try having a different area of interest other than microprocessors because in my batch some 7-8 electronics peoplecame for interview all having same microprocessor as area of interest. The people got little bugged up with and as ed some people don t you have some different subjects.

The interview will continue till 8 Oct. and results may be out after 15th Oct. P

lease pray for me, hope I ma e it, though rare hopes for me.. Let s see.

All the very best to all other aspirants,

Shilpa


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Test Paper :23Paper Type : Whole TestpaperTest Date : 10 August 2008Test Location : St. Anns Convent,SecunderabadPosted By : Shravz

BHEL PAPER ON 10th AUGUST AT SECUNDERABAD

Hii friends today I have ta en BHEL exam. I would li e to give u the details ofthe written test. It comprises of 2 sections technical (120) and aptitude (120),total 240(Test duration 150 minutes). Here I will post the questions as far asI remember. I am from mechanical stream. Paper is easy and many are direct questions, only factor concerned is the time.

SECTION-I----TECHNICAL1. Critical load acting axially on a long columnAns: (pi)2*E*I/L2

2. Relation between moment of area and radius of gyrationAns: I=AK2

3. Cup shaped components are produced using which operationAns: drawing

4. A sheet of Al alloy having 2mm thic ness is welded using which processAns: TIG

5. Two gears having teeth 18 and 40 and center distance 56what is the module?

6. In thic cylinders, which of the following is true[*S stands for sigma*] (a)St>Sr (b) St=Sr (c)St

7. In a plane stress condition, if the centre of Mohr s circle coincides with theorigin then which is true .the relation between Sx and Sy is as ed

8. Lame s theorem.F1/sinA=F2/sinB=F3/sinC

9. Young s modulus value for steel=200Gpa

10. Thermal conductivity of silver=400w/m0K

11. Fouling factor formulaF.F =1/Udirty-1/Uclean

12. Relation between notch sensitivity factor and theoretical stress concentration factor

13. Effectiveness of heat exchanger definition

14. Reynolds s number formula

15. Clinical thermometer is which order system .0,1,2, or 3

16. Piezometric transducer is used to find which signalsstatic or. dynamic

17. Peclet number formula=Re*Pr

18. Radiation energy emitted, Eemitted=S*A*T4

19. Which of the following is not related to CI engine


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(a) Fuel pump (b) carburetor (c).. (d) none

20. Two connected in series having stiffness s K1, K2Kequivalent=K1*K2/K1+ K2

21. Magnification factor at resonance, MF=1/2zeta

22. Coroili s component value, =2vw

23. Hoo s law holds good upto(a)elastic point (b)UYP(c)LYP(d)Failure

24. Meshing of two gears fail if(a)materials are different(b)25. A beam whose one end is fixed and other is free is(a)cantilever (b)ss(c)Udl(d)none

26. Deflection at the free end of cantilever =PL3/3EI

27. Shear stress, twisting moment given ,find diamaeter.

28. Formula for polar moment of inertia of a hollow shaft

29. Formula for logarithmic decrement

30. A problem based on the above formula

31. Two question on transmissibility(W/Wn ratio )

32. Question from vibrationmass, given cal frequency

33. Two more questions, one each from riveted joints and cotterjoint

34. 1BHN=N/m2

35. Temperature limits, given to find Carnot s efficiency

36. Metacentric height is the distance between Metacentre and --------Ans: Centre of gravity

37. Force and displacement vector given to find out the wor done

38. Rota meter is used to find(a)flow(b)velocity(c)pressure(d)density

In addition, 10-12 were as ed from electrical basics.

SECTION-II------- APTITUDE

VERBAL

Antonyms (5)-Facetious, Benign

Synonyms (5)-very easy

Fill in the blan s (5):-a bit tough

2 Comprehension passages


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Correction of sentences-(5)

Reasoning (5)

This section is very easy that u can start of the exam with.

Hope this is helpful to u all.

ALL THE BEST.

Test Paper :24Paper Type : Technical - OtherTest Date : 11 February 2007Test Location : Andhra Society Sr. Sec. School, New DelhiPosted By : Zosuan

BHEL PAPER ON 11th FEBRUARY AT NEW DELHI

1. The ratio of two specific heats of air is equal to. = 1.412. A perfect gas at 270C is heated at constant pressure till its volume is double. The final temperature is = 3270C

3. An engine operates between temperature of 9000K and T2 and another enginebetween T2 and 8000K. For both to do equal wor , value of T2 will be. = 6500K4. Internal energy of a substance depends on = Temperature5. Wor done in compressing 1 g of gas adiabatically from p1,V1,T1 to p2, V2,

T2 is equal to = Cv(T2-T1)6. The unit of entropy is = J/ g 0K7. Indicated power of a 4-stro e engine is equal to = pLAN/28. Which of the following is not an internal combustion engine : a) 2 stro e

petrol engine b)4 stro e petrol engine c) Diesel engine d) steam engine e) Gas turbine. = (d)

9. If one cylinder of a diesel engine receives more fuel than the others, then for that cylinder the: a) exhaust will be smo y b) piston rings would sticinto piston grooves c) exhaust temperature will be high d) engine starts overh

eating e) all of the above. = (e)10. The spar plug gap is normally maintained at: = 0.45 to 0.6mm11. A distributor in spar ignition engines performs the function of : = Provi

ding the correct firing order in engine12. Which of the following does not relate to C.I. engine:: a) fuel pump b) fu

el injector c) governor d) carburetor e) flywheel = (d)13. Air fuel ratio in a jet engine is = 60:114. What is the value of Prandtl No.?15. In domestic refrigerator, the tubes at the bac of the refrigerator are: a

) evaporator b) condenser c) capillary tubes d)

16. Which refrigerants has the highest critical point temperature. = Freon-1117. Wet bulb temperature is. = indication of amount of moisture in air18. On psychrometric chart, dry bulb temperature lines are. = Vertical19. Surface tension has the units. = newtons/m20. The line of action of the buoyant force acts through the. =centroid of thedisplaced volume of fluid21. A pressure of 25m of head of water is equal to. =245 N/m222. For a submerged body to be in stable equilibrium, the centre of gravity sh

ould be. =Below the centre of buoyancy.23. The actual velocity at vena contracta for flow through an orifice from a r


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eservoir of height H=?. =Cv2gH24. A body weighing 2 g in air weights 2.5 g when submerged in water. Its spec

ific gravity is. = 625. In a free vortex motion: = each particle moves in a circular path with a s

peed varying inversely as the distance from the centre.26. A centrifugal pump has speed-1000rpm, Flow-1200l.p.m, Head-20m, Power-5H.P

. If its speed is increased to 1500rpm, new flow will be.: = 1800l.p.m27. Runaway speed of a hydraulic turbine is: = the speed if the turbine runneris allowed to revolve freely without load and with the wic et gates wide open.28. 10m of water column is equal to = 100 N/m229. M.I. of a circular area about an axis perpendicular to the area is: = r4/230. A projectile is fired at an angle to the vertical. Its horizontal range wi

ll be maximum when is . =45031. An elevator weighing 1000 g attains an upward velocity of 4m/sec in two se

conds with uniform acceleration. The tension in the supporting cables will be =1200 g.32. A 13m ladder is placed against a smooth vertical wall with its lower end 5

m from the wall. What should be the co-efficient of friction between ladder andfloor so that it remains in equilibrium. = 0.2133. A car is moving with a velocity of 60 m/hr and possesses energy of 5x105 j

oules. The mass of the car will be. =3000 g.34. If l is the span of a light suspension bridge whose each cable carries tot

al weight (w) and the central diop is y, the horizontal pull at each support is:= wl/y OR

35. A beam of length l, having uniform load w g/unit length is supported freely at the ends. The moments at mid span will be: = wl2/8.36. A boiler shell 200cm dia and plate thic ness 1.5cm is subjected to interna

l pressure of 1.5MN/m2, then the hoop stress will be. = 100N/m237. 100KW is to be transmitted by each of two separate shafts. A is turning at250rpm and B at 300rpm. Which shaft must have greater diameter.: = B38. Two identical leaf springs of spring constant are arranged li e cantilev

ers in parallel and attached at free end by a spring of spring constant . The equivalent spring constant of combination is; = 1.5 .39. Automobile steering gear is an example of: = lower pair.40. The type of coupling used to join two shafts whose axes are neither in sam

e straight line nor parallel, but intersect is. = Universal coupling.41. To transmit power from one rotation shaft to another whose axes are neithe

r parallel nor intersecting, use: = Spiral gear.42. A gear having 100 teeth is fixed and another gear having 25 teeth revolvesaround it, the centre lines of both gears being joined by an arm. How many revolutions will be made by gear of 25 teeth for one revolution of arm. = 5 rev.43. The secondary critical speed of a shaft occurs at: = twice the speed of pr

imary critical speed.44. Brittle coating technique is used for: = experimental stress analysis.45. Factor of safety is the ratio of: = yield stress/wor ing stress.46. Type of gear used for non-intersection perpendicular shafts: = Hypoid gear

s.47. Corrosion resistance of steel is increased by adding: = Chromium & Nic el48. The product of Cupola is called: = cast iron49. Brinell tester uses a hardness steel ball of size: = 10mm

50. Sintered and tungsten carbides can be machined by: = EDM51. What ind of abrasive cut off wheel should be used to cut concrete, stoneand masonry? =Diamond grit.52. In brea -even analysis, total cost consists of: = Fixed cost + Variable co

st.53. The amount deducted from the salary of wor ers towards employees providentfund is : =deposited in the account of wor er with Provident Fund Commissioner.54. PERT is: = event oriented technique55. Bar charts are suitable for: = minor wor s.56. on a PERT/CPM chart represents: = a significant event representing some mi


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le-stone57. Electron volt is the unit of : = Energy.58. Seamless tubes are made by?59. Reheating in gas turbine results in: = increase of wor ratio and decreaseof thermal efficiency.60. Why DC current is not used in transformer?61. What is the purpose of draft tube in hydraulic turbines: = to convert theinetic energy into pressure energy.62. A mass of 100 g is falling from a height of 1m and penetrates the sand to

1m. what is the resistance force of the sand?63. Two cars travel in the same direction at 40 m/hr at a regular distance. A

car comes in the opposite direction at 60 m/hr. It meets each car in a gap of 8seconds. What is the distance between the two cars?

By,Zosuan

est Paper :25Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : Delhi

Posted By : Su eshHi Friends,

I am Su esh Kumar Patel. B.tech with electrical and electronics branch. My BHELexam was held on 31 Oct 2010. Result of that was displayed on 12th Nov 2010. I have selected for interview which is going to held on 2 Dec 2010.

As per written exam. There is no need to worry. Because there is no sectional cut off.You can either attempt technical portion or non tech as per your choice first.

Non technical portion was very easy so there is no need to do extra preparationfor it. Just maintain your speed because in 2.30 hour you have to attempt 240 qu

estions. Do your prepare for technical portion.There was 60 questions from general engineering and 60 questions from core electrical and 120 question from non technical.

I will tell you about my interview experience after 2 dec 2010.

bye.

Than s to almighty God who has given me an goldel opportunity to appear for interview round.

Test Paper :26Paper Type : Candidate ExperiencesTest Date : 31 October 2010Test Location : DelhiPosted By : Anand1.Which damping system is basically preferred?a) Critically damped b) Underdamped c) Overdamped.


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2. Fourier transform for impulse response?

3. 2-3 questions on 8085 regarding memory size and interrupts.

4. Simple numericals on AM modulation

5. If frequency in superhetrodyne?

6. 2-3 basic questions on RADAR.

7.2-3 basic questions on microwaves.

8. Frequency of oscillation of R.C.Phase shift Oscillator.

9.2 Numericals on waveguides.

General Engineering questions:

1. Which form of iron used in railway trac s.

2. What property is present when manganese is mixed with iron.

3. Some questions from electrical.

4. Questions on longest wavelength ie Xrays and longest wavelength.5. A lot of questions were from Mechanical Engineering from thermodynamics li eentropy etc.

Aptitude questions were simple and R.S. Aggarwal is enough for Quantitative aptitude as well as Verbal reasoning.

That's all i could remember.

Test Paper :27Paper Type : Whole TestpaperTest Date : 11 February 2007Test Location : UDC, TrichyPosted By : Arun Udaya umar

BHEL PAPER ON 11th FEBRUARY AT TRICHY

Hello friends,Yesterday i attended the BHEL Engineer Trainee written test in Mechanical stream. They conducted for four brances in engineering. Comp sci, ECE, EEE and Mech. In Mechanical stream there were a total of 240 questions.

120- Technical questions in Mechanical Engineering120- General Apptitude questions. (Quantitative Aptitude, Reasoning Ability, Logical thin ing, English usage)

The questions were mainly as ed inThermodynamicsEngineering MechanicsTheory of machinesProduction techIf you have strong fundas, u can really do well in this session...


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Following are the questions as ed: (I will try to give you as many questions asi remember)[One Mar for correct answer, 1/5th for wrong answer. Five choices were given]

1)Unit of Entropy (J/ g K or J/ g K)2)A mass of 100 g is falling from a height of 1 m and penetrates the sand into for 1 m. What is the resistance force given by sand.3)Ratio of specific heats of air. (1.41)4)A body weighs 3 g in air. If it is submerged in a liquid, it weighs 2.5 g. What is the specific gravity of the liquid.5)Two cars travell in same direction at 40 m/hr at a regular distance. A car comes in a opposite direction in 60 m/hr. It meets each car in a gap of 8 seconds.What is the distance between them?6)A simple problem involing in hoops stress. For sphere: M= [3/2]*p*V*[density of pressure vessel material/Maximum wor ing stress it can tolerate] For Thin walled pressure walls: Hoops stress or stress in the radial direction =p*r/2t7)A problem in force calculation in a body moving in a inclined surface.8)Composition of bronze. (Copper+zinc)9)Compostion of stainless steel.(iron+chromium+nic el+carbon)10)CI is manifactured in which process. (cupola process)11)What percentage of carbon is preset in pig iron. (4.5 to 6%)12)Water is available at 10m height. What is the pressure available? (pressure=density*g*height; p=1000*9.81*10; p=98100N/m2)

13)What will happen if the speed of the centrifugal pump doubles.14)The unit eV is widely used in ? (Nuclear and atomic physics)15)What will happen to the resistance, when the diameter of the conductor is doubled?16)The power comsumed by a electrical device is 1000W at 250V, What is the resistance in the device?(Power= Voltage*current; Current=Power/Voltage, Current,I=1000/250=4amps. V=IR, Therefore R=250/4=62.5 ohms)17)Why DC current is not used in transformer.18)On what principle the sonar/ radar( I dont remember) wor s?19)Bending moment diagram for the UDL is in what shape?20)Function of the distributor in petrol vehicles? (Spar timing)21)Which is not present in CI engines? (carburrettor)

22)What will happen if one cylinder recieves more amount of fuel spray from injectors than other injectors?23)Purpose of draft tube in hydraulic turbines? (The purpose of a draft tube istoconvert some of the inetic energy of the flow from the runner (the rotating part of the turbine) intopressure energy and thereby increase the efficiency ofthe hydro power turbine. )24)What is the effect or reheater in the gas turbine? (The advantage of reheateris significantly increased thrust; the disadvantage is it has very high fuel consumption and inefficiency)25)Problems in involving with fricition coefficient.26)Factor of safety = Yeild stress/Wor ing stress.27)Which is the example of non parallel power transmission (Universal coupling)28)For perpendicular shafts worm gear is used.

29)A planet gear with 25 teeth is meshed with a sun gear of 100 teeth. Both areconnected using a arm. How many rotations are needed for planet gear to completeone rotation around the sun gear?30)What is equivalent spring constant for spring in parallel?31) Some questions was as ed related to boundry layer and vortex flow.32) 5 questions were as ed in PERT, Process planning, Product planning, Brea even analysis.33)How are tungsten and sintered composite materials are machined? (Electro Discharge Machining, EDM)


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General Apptitude:All the sections were very easy. Basic nowledge is sufficient to attend all thequestions. But Keep time factor in mind and increase your speed. There are 120questions li e this!!English:--- Detect the words with wrong spellings (5 questions)---Fill in the blan s with appropriate words(5 questions)--- Two reading comprehensions were given(10 questions)---Find the error in the sentence (8 questions)Reasoning:--- Seating arrangement problems--- Find the relation between themQuantitative ability:All the questions were very easy.---50% of the questions are from basic geometry.---Remaining were very general and easy. But as there is a total 120questions you have have to be really quic .

By,Arun Udaya umar*****ALL THE BEST*****

Test Paper :28Paper Type : Whole TestpaperTest Date : 29 November 2009Test Location : mumbaiPosted By : Manila

Hi All, these are some of the questions from BHEL exam 2009 held on 29th nov 09.

1. To construct a half adder, the combination of basic gates ( 2 NAND And1 OR, 2 NOR and 1 AND)

2. In the integrating A/D convertor, the maximum value of the count is ( inversely proportional to voltage, directly proportional to voltage.. , 2n -1, 2n)

3. Percentage of carbon and chromium in Stainless steel.

4. Which process is used in ma ing coins.

5. Time Difference b/w IST and Greenwich Mean Time in INDIA.

6. Bronze is an alloy of ..

7. Which chip is to be used if we want to add an A/D convertor with Microp

rocessor. (8051, 8055,8053.. )

8. Where is a particle accelerator used.( Options :In aircraft, In starting an engine, In machines)

9. Maxwell bridge is used for finding ( inductance of coils for 0


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11. What is the iron called which is obtained from smelting process.

12. Why are ceramics so brittle.

13. One question on finding thevinin s resistance.

14. One amplifier has bandwidth of 100 hz, what would be the bandwidth of an amplifier when 3 similar one are cascaded.

15. Radiation resistance and antenna resistance given, to find efficiency.

16. Find the settling time for a given 2nd order response ( Given characteristic eqn)

17. Unit of electric field in MKS system.

18. Given MUF and critical frequency to find angle of incidence. (MUF= fc secangle)

19. Two questions on butterworth filter and cheronylb filter.

20. Ideal op-amp characteristics Zin=infinity and Zout =0

21. Voltage source with voltage output has : input impedance = infinity and output impedance =0

22. The system with zero entropy . (adiabatic)

23. 741IC is

24. Which is the most dangerous pollutant gas in green house gases(Carbon monoxide)

25. Relation b/w wor and power (Basically the definition part)

26. What is tensile strength .( option: The ability to handle bending and comp

ression)27. Which metal is used in ma ing water pipes( some options given)

28. 1 question related to definition of centripetal and centrifugal force.

29. Bit rate of a given PCM signal with 4 symbols and maximum frequency 20 hz.

30. Which is the metal having least hardness factor ( options: titanium, gold, mercury)

31.

NON-TECHNICAL

1 passage.

ANALOGY , SENTENCE Correction, Find the correct spelling.


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Geometry problems,

Age related questions.

Blood relations.

Around 25 questions were reasoning li e there were two statements given and comparing them if which has the greater value .

For ex:- x is an integer a) x/(x2-1) b)x/(1-1/x) ..

Which is true . A>B or B>A or A=B I mean it s just an example.. Similar reasoningwas to be given for some geometrical problems such as area or some arithmetic problems as if x,y, z are consecutive integers and then some conditions..

Test Paper :29Paper Type : Technical - OtherTest Date : 29 November 2009Test Location : bangalorePosted By : DEVISRI K

Exam date: 29th NOVResults announced on: 15th OctBranch: EEENo of que : 240 questions total( 120 technical + 120 aptitude)Duration : 150 mins ( 2.50 Hrs)-ve mar ing : 1/5th (each Question has 5 options) we have to mar the OMR withpen so no question of changing the answer once mar ed it.Aptitude: It includes both Verbal and Quantitative aptitude.English:5 Que: A sentence was bro en into 6 parts, out of which 1st and last parts were given and we need to find out the remaining sequence.5 Que : choosing the correct word for the given sentence.

5 Que : Spelling correction5 Que : comprehences5 Que : verbal reasoning.Some que on cloc , time and wor , numbers,hcf & lcm, praportions, ages, areas, partenership, reasoning etc. I felt it covered almost all the concepts of Verbal& Quantitative Aptitude.Technical: Weight age of the technical subjects(no of questions) approximately are below:Power systems : 12 (mainly from PS-II HVDC, load flow analysis)Measurements : 5Power plants : 2-3Power electronics : 10Control systems : 5

DC M/c : 6 7 ( mainly on e.m.f eq , tests and speed control)1ph m/c : 4-53ph IM & alternators : 15Mechanical : 10 -12Generic : < 5Microprocessor : 2-3Signals and sys : 3-5Digital electronics : 10EDC : more than 10Syllabus : GATE syllabus


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Below are the some of the tech questions I remember1) Impedance measured in the synchronous Impedance method is _ _ _ (i) less than the actual (ii) grater than the actual (iii) near to actual bcz itconsiders the magnetic saturation (iv) near to actual bcz it doesn't concedersthe mag saturation (v) none of these(2) What happens if the turbine I/p is increased _ _ _( real power will increase, reactive power will increase, reactive power will increase but power angle will decrease, reactive power will increase and power angle will increase)(3) if a shunt capacitor is added to the he bus which is driven by a syn m/c _ _ _ (stability increases , stability decreases , remains same)(4) when will the 2 diff T/Fs wor ing in parallel will share the load acc to thetheir KVA rating_ _ _ (in terms of lea age imp)(5) Moving coils instruments are used to measure_ _ _ ( Dc only)(6) If a 100mA instrument has a accuracy of +/- 2% , what is the accuracy if itreads 50mA_ _ _(7) In bloc ed rotor test power drawn from the src is wasted in_ _ _ ( core +copper losses )(8) In SC test of T/F the predominant losses are_ _ _ ( cu losses )(9) In which case Thyrister converter can act as Invertor_ _ _(10) Function of auxiliary diode in the Thyrister commutation circuit_ _ _(11) Sinusoidal pulse width modulation is used to contro_ _ _(i) Voltage (ii) frequency (iii) voltage & frequency(12)in RH table no of sign changes of the first row will indicate_ _ _ ( no ofroots with +ve co-efficient)

(13) one fn in S-domain was given as ed to find-out the final value_ _ _ ( Ans: multiply the fn with 'S' and replace the value of s=0))(14) Steady st and transient values of the fn v/R [1 - (e^-3t) ] _ _ _ ( Ans: V/R, v*(e^-3t) /R )(15) Some 10 -12 from mechanical engg(16) What happens if Dc series motor started without/light load_ _ _ ( speed will be dangerously high )(17) In a 3-ph T/F delta connection if one of the ph disconnected, then the opendelta T/F can be loaded to_ _ _ (57.7% of the capacity)(18) which way does the reluctance motor operates_ _ _ ( starts as a reactanceand runs as a IM, starts as 1ph IM )(19) Motor used in hand tools_ _ _(20) Hysteresis motor can run in_ _ _ (above/below syn speeds, only above syn

speed )(21) what is Rsh in Dc shunt m/c indicates_ _ _ (field winding, max R above which m/c fails to start, min R above which m/c fails to start,... )(22) What is the cut-off voltage of the Si _ _ _(23) Which the semiconductor in the given list_ _ _ (Germanium)(24) 8085 is a_ _ _ ( 8-bit processor )(25) When will T/F regulation can be zero_ _ _ ( lagging load, leading load, UPF, zero, never)(26) Load current of the T/f at max efficiency_ _ _ (Ans: if Wi-> core loss andR-> eq resistance ( sqrt(Wi/R) )(27) Generated e.m.f depends on_ _ _ ( Ans: max flux, speed, no of poles & type of wng )(28) in flux control method of dc Motor if the flux is reduced what happens to t

he speed and torque _ _ _(29) What is the purpose of external resistance in slip-ring IM_ _ _(30) Op Amp will have_ _ _ (high I/P imp and zero O/p Imp )(31) Constant amplifier and . Both will have_ _ _ (high I/P imp )(32) 2 generators G1, G2 are wor ing in parallel, what is the necessary condition of the G1 has to disconnect and the whole has to be carried out by G2_ _ _(33) Lagging p.f load will be burden to the_ _ _ (consumer, power plant, both... )(34) Percentage of oxygen in the air is_ _ _ (21%)(36) One que on Circuit bra ers


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(37) Nuclear & high capacity steam plants are preferred for_ _ _ ( Ans: base load)(38) N-type semi coducter can be formed by_ _ _ ( option: pure Si, Si + boron,si+ phosphorous, .. )(39) Which is correct in the below list in reverse bias operation of diode_ _ _(Ans: very negligible reverse current flows)

(40) in electrolytes current flows bcz of the moment of_ _ _ ( electrons, protons, atoms, molecules)(41) P-type semi -conductor will have_ _ _ ( deficiency of electrons )(42) 2 questions on Thevenin and Nortons theorems(43) one que on A/d converters something li e which of the following converts uses the internal slope(44) Why is BJT have Vcc at collector_ _ _(45) Schmitt trigger can be used for_ _ _ (square wave generator)(45) BJT characteristics_ _ _ ( in terms of junction imp)(46) Which of the below controller gives good steady st and transient stability_ _ _ ( PID, PI, PD ...)(47) In general computer the CPU including all the busses, ALU & control unit onsingle chip is called _ _ _ ( hard ware, microprocessor, mother board, RAM)(48) The component which is generally programmed after pac ing is_ _ _ (Ans: PROM)(49) The most dangerous fault near the generator_ _ _ ( 3-ph, p-ph to grd, 2-ph ...)(50) relation b/w stator and rotor fluxes. _ _ _

(51) max difference b/t true value and instrument reading is called_ _ _ ( error, discrepancy ,accuracy ,deficiency..)(52) Corrosion is an example of_ _ _ (option: erosion, oxidation.... )(53) A transmission line has 50K-ohm for 2Km, what is resistance for 200Km ? _ _ _(54) what happens to the armature reaction if a leading pf loaf is connected_ _ _ (only demagnetization, only cross magnetization, both ..)(55) In India % of voltage regulation allowed_ _ _ ( +/- 5%, +/- 3%, +/- .01%,....)Also some question infinite bus(56) Tap changing T/F are used for_ _ _ ( STEP UP, STEP DOWN, BOTH, to providelow voltage/current to instruments)(57) time constant of a RLC parallel circuit. _ _ _

(58) Quality factor_ _ _ (WL/R)(59) Half adder is an equivalent of_ _ _ (options ex-or,nand,nor,ex-nor..)(60) Which of the below is a universal gate_ _ _ (Nand, AND,OR..)(61)741 IC is_ _ _ (op-amp, timer....)(62) Out-put equation of chopper_ _ _(63) one que on muli vibrators_ _ _(64) in thyrister Gate pulse is applied b/t_ _ _ ( anode and gate)(65) ideal voltage source src and constant amplifier will have_ _ _ ( high i/pimp)(66) The component which wor s on last in first out in micro-processor is called _ _ _ ( Stac )(67) Combinational circuit in the below list _ _ _ ( Nand, AND, multivibrator ...)

(68) When is the MHO relay used_ _ _(69) What is a multiplexer_ _ _ (Ans: Device which selects a single i/p from nlines and transmits to a single o/p line depending upon the select lines)(70) function of program counter_ _ _ ( Ans: stores the address of the next instruction to be fetched)(71) A watt meter current coil is connected in R-ph and potential coil b/t Y & B, what is reading indicates. _ _ _(72) In 3-ph circuit if the P.f is 0.3 then_ _ _ ( one watt meter is -ve, can tdetermine, both are -ve...)Although these Questions loo simple, time matters a lot. As we have to mar 240


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que in 150 minuts if candidates are not prepared well in advance I am sure theywon't get a chance even to read all the 240 Que. Its better to practice the sample papers and Gate materials.That s it All The Best friends.

Test Paper :30Paper Type : Whole TestpaperTest Date : 29 November 2009Test Location : SRM UNIVERSITY,CHENNAIPosted By : PRADEEP KUMAR MBRANCH: MECHANICAL (120 QNS)1. Euler s load for columns (end conditions)2. Relation b/w longitudinal stressnd Hoops stress (thin cylindrical shell)3. First atomic power plant in India?4. Drawing paper sizes:A0,A1,A2,A3,A4

5. In an electrolytic soln conduction ta es place by.6. Problem in natural nd induced frequency7. Stud diameter for Boilers in Thermal Power plant..8. Kinematic pair..9. Ra e angle.10. Double buc et is used in which turbine11. If original size of a drawing wasreduced to half, what is the scale size12. TIG welding process is used for wh

ich Metal.13. Laser is produced from which of the following..(ruby, diamond, titanium, gold)14. 8085 microprocessor is what bit(4,8,16,32)15. Problem in friction..16. In shafts operating at very high temp what s the lubricant used..17. For mass production which of the following process is preferable(process, product, line)18. Dynamometer s used to measure19. In casting, the content of the facing sand used is,,,,,

20. Boundary layer property,,,,,,21. Formula for two springs in series..22. Nu=f(Pr,Gr)23. First law of thermodynamics.(Q=W+dE)24. Transistors-(CE,CB) qns225. npn diodes,,,,dopin(2qns)26. Power Factor(2 problems)27. 1 qn from IC chip28. Which s the universal gate among t


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he following (AND,OR,NAND,Ex-OR)29. Semiconductor Material among following..(germanium,gold,copper,silica)30. Current, 2 resistance in series,,,,find voltage,,,31. In car battery Voltage used was.32. Material used for ma ing high speed bearings,,,,,60 questions from mechanical and other 60 questions from electrical nd electronics. Generally there will not be too many question from electrical&electronics inprevious year qn papers, this one s exception. Concentrate in Theory of M/C, Thermodynamics, Prodn, FM, Strength of Matl, Materials and Metallurgy, Eng Mech..Section-2(Quants&Reasng-85,English-35, Total-120)1. Problems in Geometry and Mensuration(10-15qns)2. SI, CI and Shares(3qns)3. Time Distance(2qns)4. Ratio and Proportion(4qns)5. Venn diag (1+1+2Qns)6. Mixtures and Alligations (2qns)7. Cloc and Calendar (2qns)8. Time cistern and Wor (3qnsP)9. Time and Distance (2qns)10. Arithmetic Calc-square roots, cubes, etc (2qns)11.Age (1qn)

12. Coding and Decoding13. Analogy, direction, Blood Relations14. GMAT model qns-(25 qns)

Col-A Col-B5X8 6X7

a) col A > col B (b) col A < col B (c) col A= col B (d) no Relation (e) Answer not in option15. Comprehension Reading-1(5qns)16. Antonyms& Synonyms (5+5)17. Spelling Mista e (5qns)18. Sentence correction (5qns)19. Jumbled Paragraph formation (5qns)20. Fill in the Blan s (5qns)

For reasoning Verbal and Non verbal reasoning by R. S. Aggarwal is more than sufficient. For aptitude R. S Aggarwal is not sufficient. Learn more easy solvingmethods, Shortcuts-Refer TIME material.Time is the main constraint-2.5hrs (240qns).Multiple choice(5 options)1/5 negativemar .. Concentrate more on section-2Enter Your Comments

Test Paper :31Paper Type : Whole TestpaperTest Date : 29 November 2009

Test Location : University College Of Engg,HydPosted By : Naresh, Harsha ,Sam , Sandeep& AbhinavBranch:-ElectricalTechnical Questions1.SCR of an alternator is___________________________(Ans :inversely proportionalto Xs adjusted in P.U)2.In Synchronous Impedance method the regulation is__________(Ans: Higher than actual)3.Thyristor which is in forward bloc ing method will conduct if________(Ans:-Positive gate pulse to Cathode)


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4.SC test of T/F will give __________( Copper lossers)5 741 IC is an ____________(OP amp)6.For ideal Op amp _________(Zin =infinite and Zout = 0)7.S^2-5s+20/S^2+5S-20_______________________( All pass or Band Eliminator or....8 Memory allocated for LIFO is _____________(Stac )9.A register which stores the address of the instruction to be executed is______ _____(Program Counter)10 MHO relay is a _______( Directional Over current relay)11. A directional relay has___________ type of characteristics12 MC is used for __________(measuring DC)13 A Converter can be operate as inverter if ______________( Ans Full converter(may be) Commutation circuit also)14 Coupling used when the shafts are not inline___________(Universsal)15.first Nuclear Power plant in India is ____________(Tarapur)16 Nuclear and Thermal are used as_________( Base Load plants)17. Which Plant has max No. of auxillaries___________(Thermal)18.In T/L to transfer max power______(---)19. An Cascade amplifier has which type of intermediate stages__________(CE-CB)20 Syn M wor ing @ UPF if Exc is increased it operates at___________(Lead PF)21 Current corresponding to max Efficiency in a T/f given Pi and R______________ (Sqr Rt of(Pi/R)22. Input to Stator of I/M is 40 KW slip is 5% then Torque in Syn Watts when Stator Cu losses & Iron losses are Neg________________(38 W)23 Bloc ed Rotor Test givs ___________(Cu losses)

24. N type impurity is_______________(Phosporous)25 An Eg of Semi Conductor____________(Germenium)26 Cable insulation resistance is ______________(inversely proportional to length)27. Hand driven tools use_________(Shaded pole induction motor)28 A Hysteresis Motor runs at ____________( Sync , Sub- Syn & Super Syn Speed)29 Octal 56 to Binary_______(46)30 Sinusoidal Pulse width Modulation what can be controlled ________(freq , Volt& Harmonic)31 A nullator is a _____________(find out)32 First law of Thermodynamics __________(Q=dU+W)33 In watches which type of oil is used__________(find out)34 In shafts for operating at high temp type of lubricant used is ___________(fi

nd out)A couple of questions on Thevenin.Some questions on Control systems ( Basics)Some on Alternator and T/f parallel operations( 6 Qs)Non Technical::Quant:Questions on Venn diagrams (10), Percentages-Ratios-averages, Speed and Wor ,Kinematics, Shares , Time and Distance, Calendars, Geomentry( 20 Q from Basics)................English:Sentence correction( 5), Vocab(Syn n Ant10 Q), Jumbled sentences (5), RC (5 Q),Spellling Mista es (5Q)Reasoning :

Blood relations(2), Odd men out(3), Arrange in proper order (3 Q eg: Plant ,cloth, Yarn, saree, cotton.)Deductions,For all these topics R.S Agarwal is more than sufficient.Thats it Fol s hope this will help u out .........................ALL D BEST

Naresh, Harsha ,Sam , Sandeep & Abhinav


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Test Paper :32Paper Type : Candidate ExperiencesPosted By : Asd

BHEL Mechanical Engineering Paper

I attended the BHEL Engineer Trainee written test in Mechanical stream. They conducted for four branches in Engineering: Comp sci, ECE, EEE and Mechanical. In Mechanical Branch there were a total of 240 questions. 120- Technical questions in Mechanical Engineering. 120- General Aptitude questions. (Quantitative Aptitude, Reasoning Ability, Logical thin ing, English usage).

The questions were mainly as ed in

Thermodynamics

Engineering Mechanics

Theory of machines

Production tech

If you are thorough with your subject, you can really do well in this session.[One Mar for correct answer, 1/5th for wrong answer. Five choices were given] Some questions which i remember are :

1)Unit of Entropy (J/ g K or J/ g K)?2)A mass of 100 g is falling from a height of 1 m and penetrates the sand into for 1 m. What is the resistance force given by sand?3)Ratio of specific heats of air ? (1.41)4)A body weighs 3 g in air. If it is submerged in a liquid, it weighs 2.5 g. What is the specific gravity of the liquid ?5)Two cars travel in same direction at 40 m/hr at a regular distance. A car comes in a opposite direction in 60 m/hr. It meets each car in a gap of 8 seconds.

What is the distance between them?6)A simple problem involving in hoops stress. For sphere: M= [3/2]*p*V* [densityof pressure vessel material/Maximum wor ing stress it can tolerate] For Thin walled pressure walls: Hoops stress or stress in the radial direction =p*r/2t?

7) A problem in force calculation in a body moving in a inclined surface?

8)Composition of bronze?ans. Copper+zinc.

9) Composition of stainless steel.?ans. iron+ chromium+ nic el+ carbon.

10) CI is manufactured in which process?ans. cupola process

11)What percentage of carbon is preset in pig iron?ans. 4.5 to 6%.

12)Water is available at 10m height. What is the pressure available?ans= pressure=density*g*height;p=1000*9.81*10;p=98100N/m2.


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13)What will happen if the speed of the centrifugal pump doubles?

14)The unit eV is widely used in ?ans. Nuclear and atomic physics.

15)What will happen to the resistance, when the diameter of the conductor is doubled?

16)The power comsumed by a electrical device is 1000W at 250V, What is the resistance in the device?ans. Power= Voltage*current,Current=Power/Voltage,Current,I=1000/250=4amps. V=IR,Therefore R=250/4=62.5 ohms.

17)Why DC current is not used in transformer?

18)On what principle the sonar/ radar wor s?

19)Bending moment diagram for the UDL is in what shape?

20)Function of the distributor in petrol vehicles?

ans. Spar timing.21)Which is not present in CI engines?ans. carburrettor.

22)What will happen if one cylinder recieves more amount of fuel spray from injectors than other injectors?

23)Purpose of draft tube in hydraulic turbines?

ans. The purpose of a draft tube is toconvert some of the inetic energy of theflow from the runner (the rotating part of the turbine) intopressure energy andthereby increase the efficiency ofthe hydro power turbine.

24)What is the effect or reheater in the gas turbine?

The advantage of reheater is significantly increased thrust; thedisadvantage is it has very high fuel consumption and inefficiency.

25)Problems involving with fricition coefficient.

26)Factor of safety = Yeild stress/Wor ing stress.

27)Which is the example of non parallel power transmission (Universal coupling)?

28)For perpendicular shafts worm gear is used?

29)A planet gear with 25 teeth is meshed with a sun gear of 100 teeth. Both areconnected using a arm. How many rotations are needed for planet gear to completeone rotation around the sun gear?

30)What is equivalent spring constant for spring in parallel?

31) Some questions was as ed related to boundary layer and vortex flow.

32) 5 questions were as ed in PERT, Process planning, Product planning, Brea ev


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en analysis.

33)How are tungsten and sintered composite materials are machined?(Electro Discharge Machining, EDM)

General Apptitude:

very easy. There are 120 questions .

English:

Detect the words with wrong spellings (5 questions).Fill in the blan s with appropriate words(5 questions).Two reading comprehensions were given(10 questions).Find the error in the sentence (8 questions).

Reasoning:

Seating arrangement problems.Find the relation between them.

Quantitative ability:

50% of the questions are from basic geometry .

Remaining were very general and easy. But many questions are there that's y youshould consider time factor and be quic .

Test Paper :33Paper Type : General - otherTest Date : 7 August 2008Posted By : Sruthi

BHEL PAPER ON 7TH AUGUST,2008

Hi friends. BHEL paper consists of two parts.A) TechnicalB) AptitudeBoth parts consists 120 mar s each. There is negative mar ing which 0.2.

Technical paper1) How many lin s in slider cran mechanism?2) Deflection of cantilever beam subjected to end point load?3) Stress concentration factor Kf =?4) What is the unit of BHN?5) What is efficiency of riveted joint?6) Composition of Munz metal?

7) One shaft is subjected to torque 1700 N-m having shear strength of 40Mpa. Determine the diameter?8) A reversible engine is wor ing between the 600F and 60F. Carnot efficiency isequal to

(www.entrance exam.net) bhel

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