*#r* IVLE,

Time: 3 hrs.Note: Answer any FIVE full questions, selecting

atleast TWO questions from each part.

PART _ A

L a. Explain the various functions of management.b. Explain the roles of a manager.

2 a. Discuss the importance of planning. Differentiate between strategicplanning.

b. With a flow chart, explain the steps involved in decision making.

Fifth Semester B.E. Degree Examination, Dec.2015 lJan.2016Management and Entrepreneurship

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UBnARy r?USN 10AL51

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planning and tactical(10 Marks)(10 Marks)

a. What are the principles of an organuatipn? Explain.b. Explain briefly the steps involved in selection process.

a. Explain briefly Herzberg's theary of motivation.b. What are the essentials of a sound control system? Explain.

PART _ B

5 a. Define the torrn'Entrepreneur'. Differentiate between entrepreneur and Intrapreneur.

(10 Marks)(10 Marks)

(10 Marks)(10 Marks)

(10 Marks)(10 Marks)b. Explar},fhe stages in entrepreneurial process.

;/'+. \6 a. What are the steps involved in setting up of small scale industry (SSI)? Explain. (10 Marks)

b. What are the objectives and functions of world trade organization (WTOX exphiniro Marks)

;7 a.

b.Explain the objectives and functions of NSIC and KSFC. (10 Marks)Write short notes on KSSIDC and SISI. (10 Marks)

Explain in detail the guidelines for preparation of project reporl. (10 Marks)What are the various network analysis techniques? Differentiate between PERT and CPM.

(10 Marks)

8a.b.

USN 1OME52

Fifth Semester B.E. Degree Exami , Dec.2015lJan.20l6Design of Machine Elements - I

Time: 3 hrs. Max. Marks:100Note: l. Answer FIVE full qaestions, selecting

st leust TWO questions from each purt.

e? 2. Use of design dota handbook is permixed.€ 3. Assume missing data if any suitably.i:Ec PART-A! I a. Explain briefly the selection of factor of safety in engineering design. (03 Marks)

E b. Explain briefly the selection of materials in the pro..r, of machine design. (03 Marks)t c. A wall bracket with a rectangular cross-section is shown in Fig.Ql(c). The force P acting on

E the bracket at 60o to the vertical is 5 kN. The material of the bracket is gray cast ironE (ordinary) and factor of safety is 2. Determine the cross section of the bracket for maximumS normal stress. All dimensions shown are in mm. (07 Marks)il

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E Z a. Explgffieories of elastic failures. Mention five types of theories of elastic failures.(J ngE .. $\\# (05 Marks)

E p. @o\erhang crank with pin and shaft is as shown in Fig.Q2(b). A tangential load of 15 kNE *ffis on the crank Pin. Determine the diameter at section 'XX' using maximum shear stressE d*ry,

E Fig.e1(c)".ry:* Fig.el(d)E d. A point in a structuralffiofrber subjected to plane stress as shown in Fig.Ql(d). DetermineE the following: *-'h3-cBrB i) Normal and{angential stress on a plane inclined at 45o.: ii) Principalqt&#es and directions.

C6

e iii) Maxir- ffihear stress. (07 Marks)q ' u\.%lrd -"\. %;ruv,d &*€ 2 a. Explai*ffiheories of elastic failures. Mention fi(c.(r *flE. tlq\#H p. ffio\erhang crank with pin and shaft is as slE flFt" nn tlea nnonL Dia T'lo+o**:-^ +1^^ ,{.i^*^+^tffi}*;/---Irlurlrorrv.

$ ^ _ q h"t theory. The crank is made of C60 carbon steel. Take factor of safety as 2. A11 dimensions are

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-- 100 --"i

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1 of3

Fie.Q2(b)

10ME52

c. A flat plate subjected to a tensile force of 5 kN is an shown in Fig.Q2(c). The plate materialis gray cast iron (good) and the factor of safety is 2.5. Determine the thickness of the plate.All dimensions are in mm.

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Fig.Q2(c)Design a rod of solid circular cross section of length 200 mm (placed vertical) to sustain anaxial compressive load of 1000 N, that falls on it from a hdight of 10 mm. The materialselected has a design stress of 80 N/mm2 and E : 2.1 x 105 N/mm2. (03 Marks)

i;3,Explain stress versus number of cycles (S-N) curve fif ferrous and non-ferrous metals with3a.

4a.

b.

C.

the aid of experimental sketch and characteristic curves.Derive Soderberg equation.

(06 Marks)(06 Marks)

A stepped shaft of circular cross section shown in Fig.Q3(c) is made of SAE 1045 annealedsteel. The load is repeated and comiilefely reversed with a value of 100,000 N. Takingrl"'- =:, determine the diameter 'd'i[trd the fillet radius 'r' so that the maximum stress will bed8limited to a value corresponding to a factor of safety 2. Consider the load factor : 1, surfacefinish factor: 0.85 and size factor: 0.9. (08 Marks)

A flat circular plate is used to close the flanged end of a pressure vessel of internal diameter300 mm. The vessel caries a fluid pressure of 0.7 N/mm2. A soft copper gasket is used tomake the joint leak proof. Twelve bolts are used to fasten the cover plate on the pressurevessel. Find the size of the bo1t, so that the stress in the bolt not to exceed 100 N/mm2.

The structural joint shown in Fig.Q4(b) is subjected to an eccentric load P "f 10 k$t#,TT,l

eccentricity of 500 mm from the center of gravity of the bolts arrangement. Distancebetween the bolts is 200 mm and 150 mm perpendicular and parallel to the direction of theload acting. Bolts are identical and made of plain carbon steel having yield strength of400 N/mm2. Determine the size of the bolts taking factor of safety as 2.5.

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(10 Marks)

$in'-,'"'**iri.,.i A uniform circular carbon steel shaft made

10ME52

led is mounted on twobearings 850 mm apart as shown in the Fig.Q5. a gear 'A' at 200 mm to the

is subjected to horizontal pressure of 3500 N and a vertical upward pressure of 9600 N. Thepulley is driven by a belt with a tension on tight side to be 6000 N and on the slack side to be

2000 N. The shock and fatigue factors for bending and torsion as K* : 2 and t! = J.5respectively and weight of the pulley to be 1500 N. Design the diameter of the shaft for

35 mm. The hub length of the gearis 60 mm, Both key and shaft is made of ial having allowable shear stress of55 MPa. What are the dimensions of according to maximum stress theory if

(05 Marks)

Two mild steel tie bars, for a are to be joined by means of butt joint withdouble cover plates. The thick of the tie bar is 15 mm and caries a tensile load of300 kN. Design an eco I joint completely taking the allowable stresses as

ot: 80 MN/m2, o.: 1 lr:rf and t : 64 MN/m2. Draw neatly a proportional top andfront views of the nt of rivets with dimensions. (14 Marks)

b. Ar25x1oox1o ual leg angle section is to be welded to a steel plate by filletwelds along the of the 125 mm leg as shown in Fig.Q7(b). The angle is subjected to a

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Fig.Qs ^ {"^d :* (20 Marks)&$fl6 a. Design a Cotter joint for an axial load of 50 kN which affiraatelV changes from tensile to

compressive, assuming allowable stresses in the compongets under tension and compressionas 52.5 N/mm2, bearing stress as 63 N/mm2 and shem*+g Stress as 35 N/mm2. Sketch neatlythe joint and show dimensions. %:,i (15 Marks)

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Fie.Q7(b) (06 Marks)

Derive the equation for torque required to lift the load on square thread screws. (08 Marks)Define self locking and overhauling of power screw. (04 Marks)A machine slide weighing20 kN is raised by a double start square threaded screw at the rateof 0.84 m/min. take p :0.12 and ;-r..:0.14. The outside diameter of the screw is 44 mm andthe pitch is 7 mm. The outside and inside diameter of the collar at the end of the screw are58 mm and32 mm respectively. Calculate the power required to drive slide. If the allowableshear stress in the screw is 30 MPa, is the screw strong enough to sustain load. (08 Marks)

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Energy EngineeringOr4'€ , Time: 3 hrs. Max. Marks:,l0#E": .,'uJg'- t#lira

E Not e: Answer any FIVE full questions, selecting atleast TWO questions from each part.0cl ::."",:.... .t"''

. ',i:. PART - A i''.'1""""r

E

$ g I a. Explain with neat sketch, over feed and under feed principle of firing co"iil (06 Marks)

. , ;.t- b. What is Pulverized coal? Discuss the advantages and disadvantage-s' of pulverized coal.riii;.,$H,.:. ': ,- , -,: --- - vg- -- r (06Marks)

USN 10ME53

Fifth Semester B.E. Degree Examin Dec.2015 lJan.20l6

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":li:.'EH', , ':',, t;E* ' c. Explain the pneumatic ash handling system, with a neat sketch. ',lia

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'&iE A. 2 a. With a neat sketch, explain the Benson boiler. I *

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. . :;E* I ' c. Explain the pneumatic ash handling system, with a neat sketcl*,- {.r (08 Marks):lia

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E -*. " ^ II/:+L ^ ..^^+ ^1-^+^L ^---l^:- 4L^ n^-^^- L^.:1^-, E gl 2 a. With a neat sketch, explain the Benson boiler. : .,%t (06 Marks)

€ E b. Estimate the height of chimney required to producqlfilptatic draft of 16mm of water if theE E mean temperature of the flue gases in the chimney iS 2SS0C and the temperature of outsidep e air is 250C. The densities of atmospheric air q#d lhe flue gases at N.T.P are 1.293 and 1.34

; € kglrrf respectively "..,: (04 Marks)

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I p 3 a. Draw a line diagram to show the layout of diesel power plant and describe it in brief.Bii e 6_,#f,t, € € ,,h, (10 Nlarks)

,! ; ; b. What are the merits and deu.fftrY of diesel power plant? (04 Marks)

A . E r\.8/ ur r sDpEurrvsry. i$'*il td"s (U4 rylafKs,

E * c. Explain with a neat sketch, the working oi nutu.ul draught cooling towers and hyperbolicE ! cooling tower. ,, (10 Marks)99h0c

H € c. Explain different methods of starting of diesel engine. (06 Marks):G

48.fi $ 4 a. State the important factors to be considered while selecting the site for hydro - electric

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SF -.-*nonthlyflow.

, i \*fu ii) Power available at mean flow of water. If the available head is 80 meters. At site andii :#;'

"; overall efficiency is 80%. Take 30 days in month. (10 Marks)

E *""ffiE'" ,U" PART _ Btsh&d,-E 5 a. Explain the principle of release of nuclear energy by fusion reaction. (06 Marks)

b. With the help of a neat diagram, explain the working of pressurizedwater reactor.

c. Explain : i) Thermal utilization factor ii) Multiplication factor. [8:ffiII:]

gi.E power plant. ,qer (05 Marks)

; E b. With a neat skercli and explain pumped storage plant. (05 Marks)F H c. Mean mop1fi|y,"6ischarge for T2 months at particular site of river is tabulated below ::.tru.IvrWtlEIUIIzIIlUIltIlSa[oaftlcularSlle()lrlVerlStaDulate(lnel()w:

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.i'i lpffihrgeinmillions l4s 130 120 | ls l0 lso lzs I too I r10 170 I0o l+o IEE .Jdf-m'/month I I I I I I I | | | I I I=da:

E E Dihw : i) Hydro graph and flow duration curve for the given discharge and find the average

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I of2

a.

b.

10ME53

What are .the main applications of the solar pond? Explain with the help of a neat sketch asolar pond electric power plant. (10 Marks)Wind at 1 standard atmospheric pressure and 200C has velocity of 12mis. The turbine hasdiameter of 120m and operating speed in 40 rpm at maximum effrciency. Ca

assuming q: 35o/o rD Total power v) Total torque.

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USN 10ME54

(12 Marks)

(06 Marks)

Fifth Semester B.E. Degree Examination, Dec.2015 I Jan.20l6Dynamics of Machines

Time: 3 hrs.{\

Max. Marks:fiGU.Note: Answer FIVE full qaestions, selecting ':.

at least TWO fuestiins from each part. 'i']o.9od!aE1Era(B

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a.Consideringslidercrank-..nun,,,,ffi.xplainprincipleor,i,toal*6H.(08Marks)b. A four bar mechanism shown in Fig.Ql(b) is acted upon by a force P

= 1001120"N on link

CD. The dimensions of the various links are AB : 40 mm, BC = 60 mm, CD : 50 mm,DA: 30 mm and DE : 20 mm. Determine the magnitude and direction of input torque T2

on link AB for the static equilibrium of the mechanism.

: E 2 a. Prove that the maximuql fluctuation of energy E6 is given by Er: 0.02CsE, where E : mean

€ € kinetic energy of ng$i, C, : total percentage fluctuationof speed. (06 Marks)

5 q b. A punching machin"efs operated by an electric motor which supplies a constant torque. The'Eg r Q

E ; motor deliveq*68 KW. At the commencement of operation the flywheel of the punching=

cl ^\"$ H machine ffi&peed of 300 rpm. The moment of inertia of the fly.wheel is 60 kgm2. Each

S 3 punching"ti#ration requires 5600 Nm of energy and actual punching takes 1 second. Find:o i PLlrlvuurts tJIJll4LrLrrr rvr{ rvrSJ 4uu qvluq

E € D ]{e-,number of punchings that can be made in an hour.

A E i{'Fle reduction in speed after punching is over.E E rq\-Hg*E 3 ryLbbrive the expression for frictional torque in a single fla

F'p ^ \*pressure.

(14 Marks)(0 E d ,\:6 *q\*E 3 ryLbbrive the expression for frictional torque in a single flat collar bearing. Assume uniform.E g.

^ *\ * pressure. (08 Marks)

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A shaft rotating at 300 rpm transmitting 5 KW power to drive another shaft at 500 rpmF q""#* through a flat belt drive. The belt is 120 mm wide and 15 mm thick. The distance betweeno ,i{ q" d$

5W * the centres of shafts is 3m, The effective diameter of smaller pulley is 0.75 m. Calculate the

, J stress in the belt, if it is (i) an open belt drive, (ii) a cross belt drive. Take the coefficient ofoEzE 4a.iiEb.

friction between the belt and pulley is 0.3.

Explain static and dynamic balancing of a system of revolving masses.A shaft carries four rotating masses A, B, C and D which are completely balanced. Themasses at A, B and C are 60 kg, 55 kg and 80 kg respectively rotating at equal radii. Thedistance between B, C and D from A are 500 mm, 600 mm and 1300 mm respectively.Determine the mass at D and angular positions of masses B, C and D with respect to mass A.

r of 2 (14 Marks)

5a.

6a.

b.

la.b.

b.

1OME54

. PART_BA V-twin engine has the cylinder axes at right angles and the connecting rods operate acommon crank. The reciprocating mass per cylinder is 10 kg and the crank radius is 80 mm.The length of the connecting rod is 0.4 m. Show that the engine may be balanced forprimary forces by means of a revolving mass. If the engine speed is 600 rprrq determine thevalue of maximum resultant secondary fbrce.

A four crank engine has two outer cranks set at 120o to each other and their(04

masses are each 400 kg. The distance between planes of rotation of adjacentgffii are

rect

450 mm, 750 mm and 600 mm. If the engine is to be in complete balffiei4ind thereciprocating mass and the relative angular position for each of the inn{$dnks. If thelength of each crank is 300 mm, the length of each connecting rod is 1.? #qrfl the speed ofrotation is 240 rpm, find maximum secondary unbalanced force. u*5** (16 Marks)

r-*q) *

Derive the expression for speed of a porter Governor with usgqf urWations, taking frictioninto account. ,e., Ld (08 Marks)In a porter Govemor, the arms and links are each 250 mq bni; and intersect on the mainaxis. Each ball weigh 4.5 N and the central load is 20 Nr'|he sleeve is in its lowest positionwhen the arms are inclined at30" to the axis. The lffi;Of the sleeve is 50 mm. Find force offriction at the sleeve, if the speed ascent from the loivEst position is equal to the speed at thebeginning of the descent from the highest p,qffilph. Also find range of speed. all thingsremaining same. (12 Marks)

Explain the effect of gyroscopic couple o.p an aeroplane. (08 Marks)A rear engine automobile is travell{r"rpffing a track of 100 m radius. Each of the four wheelshas a moment of inertia of 2 kgd.=ffi an effective diameter of 0.6 m. The rotating parts ofthe engine have a moment of inqrfia of 1.25 kg*'. The engine axis is parallel to the riar axleand the crank shaft rotates,in4h6 same direction as the wheels. The gear ratio of engine toback axle is 3:1. The autonio6ile mass is 1500 kg and its centre of gravity is 0.5 m above theroad level. The width of the track of the vehicle is 1.5 m. Determine the limiting speed of thevehicle around the curve for all the wheels to maintain contact with the road surface.

(12 Marks)

8 a. Derive the expressions for displacement, velocity and acceleration for a circular arc camoperating a flat faced follower when the flat face of the follower has contact on the circularflank. (10 Marks)

b. Agdm of circular arc type is to operate aflat faced follower of a four stroke engine. The

*,,eilihust valve opens 50J before top dead centre and closes 15o after bottom dead centre. Theg*\valve lift is 10 mm, base circle radius of cam is 20 mm and nose radius is 3 mm. Calculate

q;fu, * the maximum velocity, acceleration and retardation, if cam shaft rotates at 1800 rpm.

q.&\,, ': (10 Marks)"d\"'it. t ''*u'

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2 of2

USN

Time: 3 hrs.

Fifth Sernester B.E. Degree Exarninatit$ .2t)15/Jan.2015Manuf,acturing Process * lll

l\ote: Answer FIVE full questions, selectingat least TWO questions from each part"

Iv{ax. Marks:1CI0

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(85 Marks)

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PART _ A1 a. Define true stress and true strain. Derive expressions showing the relationship betu,een true

2 a. Explain the effect of the foliowing on metai workingprocosses (i) ternperature, (ii) ftictionand lubrication. (trCI Marks)

b. Write a note on: i) deformation zone geometry, (ii) residual stresses in wrought products.{10 Marksi

(06 &,{arks}

(08 &(arks)($5 Marks)

4 t. Explain with neat sketeh of rolling mill (i) four high roltring inill, (ii) tandem rolling mill.(tr0 h,E*rks)

b. Discuss tlie efflect of front tension and back tension on the rolling process, with neat figures.(08 Marks)({}2 S'tarks)

(08 &!arks)(CI4 Marks)(08 Marks)

6 a. Give the classification of extrusion processes and explainsketch.

b. Explain the foliowing:i) Metal flow and deformation during extrusionii) Defects in extrusion

any two processes with neat(tr0 Marksi

(tr0 Marks)

stress and engineering stress as weil as true strain and engineering strain.b. Explain with a neat sketch the hydrostatic pressure in metal working.c. 't4lrite a not-e on determination of flow stress.

3 a. With neat sketches, describe various types of forging processes.b. Expiain Cie design parameters in forging, with a neat flgure.c. Explain "fiiction hiltr ccncept" and the factors affecting it in forging.

c. List defbcts in rolling"

PART _ B5 a. Using neat sketches explain Rod drawing and wire drawing.

b. With neat sketch, briefly explain the different f,eatures of a drawing die.c. Explain with neat sketches different rnethod of tube drawing.

to produce this hole?

I a. What is HERF? Explain explosive fonning, with a neat figure.b. With a flow chart, expiain in detail the powder metallurgy process.c. Explain any two methods of production of metal powder with sketches.

7 a. With neat sketches, explain combination die and progressirre die. List the type ofcomponents produced in sheet metal work. (10 Marks)

b. Write a note on forming lirnit criteria (Keeler-Goodwin diagram). (s5 Marks)c. It is required to punch a hole of l0 min dia in a mild steel plate of 10 mrn thickness.

Deteruniile vrirether it is feasible or not, taking shear strength, of the plate as 600 N/mrn2 aildcompressive strengttr of the punch as 2000 N/mno2. If it is notpossible, what could be tJone

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USN 10M856

a.

b.

a.

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Fifth Semester B.E. Degree Exami n, Dec.201S/Jan"2016Turbo Machines

Tirne: 3 hrs, Max" N{arks:i00

Note: 1. Answer any FIVE full questions, selectingstleast TWO qaestions from each part"

2. Missing data naay be saitabljt assamed.

PART _ A

Enumerate the differences between Positive Displacement Machines and Turbomachineswith reference to its action, energy conversion process and volumetric efficiency. {S6 Marks)V/ith usual notations, derive expressions for Unit Discharge coefficient, Head coefficientand Power coefficient using Dimensional Analysis. (08 Mar"ks)

c. The quantity of water available for a hydroelectric power station is 250m3/sec. The headdeveloped is 1.73rn. If the speed of the turbines is 50 rpm ancl the efficiency 82.5ok, find thenumber of tue'bines. Assume specific speed to be 760. (S6 Nlarks)

With usual notations, derive an expression for infinitesimal stage efficiency duringconrpression process with the aid of TS plot. {tt} Ntarks)A 9 stage centrifugal compressor has overall stage pressure rutio 2.82. Air enters thecompressor at I bar and 150C. The efficiency of the compressor is 8B%. Determine thefallowing : i) Pressure ratio of each stage ii) Polytropic efficiency iii) Prelreatfactor. {10 Ntarks)

The veloeity of the steam in a De Laval Turbine at the inlet is1200m/sec" The nozzle angleat the inlet is 220 and blades are equiangular. Assuming relative velocities of the tluid atinlet and exit to be equal and tangential speed of the rotor is 400m/sec. Determine thefollowing : i) Blade angles at inlet and exit ii) Power developed in kW, if mass flowrate is lkg/sec iir) Tangential force exerted on the rotor blade rirng iv) Utilizationfactor. (I0 N{arks)

b. Show that for an axial flow turbine subjected under maximum utilization factor condition,the speed ratio S is given by 213 cos cx,1, where 'U' is the tangential speed of the rotor and'Vf is the tangential jet velocity of the fluid. Assume floiv velocity to remain constant and'cltf is the nozzle angle. Take Degree of Reaction R : %. {tr8 Marksi

a. The total'power input at a stage in an axial - flow compressor with symrmetric inlet andoutletvelocitytriangles(R:0.5) is27.85 kJikgof airflow. Ifthebladespeedis l80n/secthroughout the rotor, draw the velocity triangles and compute the inlet and outlet r*tor bladeangles. Do you recommend the use of such compressors? Comment on the results you haveobtained. Assume axial velocity component to be 12Omlsec. (1t) Marks)

b. An inward flow radial reaction turbine has axial discharge at outlet. The outer blade angle is450. The radialvelocity of the flow remain constant. Aisuming the tangential speed of therotor at iniet to be twice the tangential speed of the rotor at exit, determine the energy

transfer per unit flow depending on mass and degree of reaction. Assume V,,,: \Eg . trf the

values of degree of reaction respectively are '0' and '1', what are the corresponding valuesof energy transfer per unit mass of the fluid?

I of2

(10 Manks)

1oME56

PART _ B

a. Define a stearn turbine. List out the differences between Impulse and Reaction steamturbines. (08 Marks)

b. Brieftry explain Velocity Compounding. (tt4 Marks)c. In a reacl;ion turbine, the inlet and outlet blade angles are 500 and 200 respectively. Steam

.enters at 180 to the plane of the rotorwheel and leaves at 400. The rotor speed is 260m/sec.Calculate tlae speed ratio, specifio work and degree of reaction.

a. Prove that the hydraulic efficiency of Pelton wheel is given by

Bucket velocity coefficient and Bz is the runner tip angle.b. Explain tlne function of a draft tube. {$4 Marks}c. An inward flow reaction turbine with radial discharge having overali efficiency 80% when

power developed is 147 kW. The head is 8m. The peripheral velocity of the fluid isA.96Wand flow veiocity of the fluid is U6W. The speed of the rotor is 1500 rpm

and hydraulic energy losses is 22% of available energy. Determine the foilowing :

i) Inlet guide vane and blade angles ii) Diameter of the rotor iii) Width of the rotor.(08 Marks)

(08 Marks)

i+C"cos$.#^ u,here.cr'is2

(08 Marks)

a. Define a Centrifugal pump. With usual notations,relationship for a centrifugal pump.

derive theoretical head - capacity(08 ilIanksi(84 Marks)What is Cavitation? What are its effbcts?b.

C.

8a.b.

Show that the pressure rise in the impeller of a centrifugal pump is given byP,-R 1[,,, .- I

? = ; [U; + u; - Vr] cosec' F..1, where V, & Vr, are the flow velocities ancl Fz is tliefb

outlet Eiade angle. (08 Marks)

Explain Surging , Stalling and Slip factor with reference to a compressor. (08 Nlarks)The irnpetrlof tip speed of a centrifugal compressor is 370mlsec, slip factor is 0.9, and theradial cornponent at the exit is 35m/sec. If the flow area at the exit is 0.18m2 andcomprossor efficiency is 8B%. Dbtermine the mass flow rate of air and the absoiute klachnumber at impeller tip. Assume air density : 1.57kglm3 and inlet stagnation temperature is290K. Neglect the work input factor. Also find the overall pressure ratio of tlie r"r?fffi:nl;

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