pt powerpack 2013 support material - interview questions on electronics, electrical engineering
TRANSCRIPT
-
8/12/2019 PT PowerPack 2013 Support Material - Interview Questions on Electronics, Electrical Engineering
1/3
(1) of (3)
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
ELECTRONICS, ELECTRICAL ENGINEERING
l Comment on the latest developments in National Telecom Policy. Who are themajor players?
l What is laser? What is maser? What is the principle behind them? What is thedifference?
l What are the features of the new chips that Intel is bringing about (i.e.804).Explain digital multiplexing
l Do you know about Heiger Muller counter?
l What do you know of spectrum analysis?
l How do waves transmit from antennas?
l W h a t i s th e d i ffe r e n c e b e tw e e n h u m a n c o m m u n i c a ti o n a n d e l e c tr o n i ccommunication
l State Kirchoffs law. Describe a system in any other field where you can finda perfect analogy with Kirchoffs law
l If you were the engineer in charge of transmission lines in the country, whatwould you do to reduce transmission losses?
l Why is AC transmission preferred to DC? Do you know any place where transmission is in DC?
l Draw the VI characteristics of Diode?
l How will you keep track of electronics and its changes while in the IIMs?
l How do you differentiate between an electric and an electronic device?
l Is CRT an electrical / electronic device?
l What is a pn junction?
l How do you obtain a ptype semi conductor?
l Carbon is a tetravalent element. Can it be doped?
l Why are shifting from analog to digital telephones?
l What is power electronics?
l Explain how a radio works?
l In an enclosed room, where no exchange of air is allowed, will the radio work?
l What is modulation? Why modulation? Types
l Types of electron collision. Factors it depends on
l What is cyclotran? Where are they located in India?
l What is instrumentation? Name 3 instrumentation industries in India?
l Do we manufacture ICs in India?
l Why are we importing chips?
l Which ICs are manufactured in India?
l What are the chips in Computer industries?
l What is networking? Is it useful? Different types of networking. How is it achieved in practice. How can I join a network?
l What are Capacitor equations?
l What is a control system?
l What is zero earthing?
l You ar e giv en a dev ice wi th no ex te rna l con nec ti ons . Ho w can you sa y th at it is bas ed on ele ctron ic ope rat ing pri nci ple s?
l What is telecommunication? Have you done any practical work with it?
l Questions on Digital Electronics? Digital ICs
l What is the difference between PASCAL and FORTRAN?
l Write a program within 30 seconds to find n! using recursive procedures in PASCAL and using subroutines in FORTRAN. What isthe difference between recursive procedure and subroutine?
l What motor is used in a ceiling fan? Explain why it requires a starting arrangement
l Isnt Electronics more exciting than management?
l What is optonics?
l What are the line losses in the case of Electronic Commission?
l What is a comma?
l What is OR Gate?
l What is AND Gate?
l How do you transmit information using digital communication?
l Is telephone an electronic instrument or an electrical one?
l What is the difference between an electronic exchange and an ordinary exchange?
-
8/12/2019 PT PowerPack 2013 Support Material - Interview Questions on Electronics, Electrical Engineering
2/3
(2) of (3)
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
l How are the National Network Programmes telecast?
l What is solenoid? Assuming a direction of current, mark the N & S poles and one magnetising field
l What is the difference between conductor and insulator?
l What is semi conductor. Explain with Atomic Structure.
l Define Laplace transform? What is the advantage in using it?
l Describe the mechanism of lighting in a train
l What is the difference between B & W TV and colour TV?
l What is CDOT? What does it do? l Name one example of application of electronics in the rural sector
l What is the principle of a microwave oven?
l If the distance between 2 stations is 20,000 kms, how much time will the radiowave take to reach the other station?
l If a sine wave is applied across a capacitor, draw the wave across the capacitor.
l What are the transmission losses in India? Reasons for the same
l What is the load factor in India, its percentage?
l What is the total power capacity in India? Thermal share?
l What is the parameter used in place of load factor in western countries?
l Tell us about Magneto Hydro dynamics and its relevance to power stations.
l If a particular station is in a situation of over capacity, is the overcapacity due to lack of demand or because of poor transmissionnetwork in India?
lCompare Hydel Energy with Thermal Energy
l What are the latest developments in Electronics and Telecom?
l What are interrupts? List them according to their priority?
l What is the need of interrupts?
l What is EPROM? How to use it?
l List some manufacturers of Electronic Parts in the world?
l What are the advantages of ICs over PCBs?
l Problem on digital logic: Questions were asked on the figure alongside given certain inputs and outputs.
l What are the applications of electronics in agriculture?
l How is an I.C. manufactured and tested?
l What is the difference between the antenna for colour TV and B/W TVs?
l How is electricity generated in a nuclear plant?
l In the Iraq War, how did the Patriot stalk the Scud? Why are two earth stations needed while the radar uses only one? l What is thyristor How is it different from a diode?
l Name some process instrument manufacturing companies. Explain the use of digital devices for pneumatic instrumentation?
l Find out the current 1.
l What is Kmap?
l What is the difference between a small TV screen and a big TV screen?
l What is the difference between electrical and electronics engineers? What is the difference in the environments than anelectrical engineer and electronics engineer work in?
l Use of flipflop, its representation etc.
l What is a thermal power station? What other types of power stations are there in India? Which state has surplus powergeneration?
l How does a radio work? (Question asked in detail)
l How do you convert A.C.A to D.C.? What are the uses of rectification?
l Draw and explain a full wave and halfwave rectifier.
l What is the motor used in a lift? Why?
l Why is power supply at 220 V and not a round figure like 200 V?
l Which motor is used in tape recorders?
l What is the frequency limit for voice communication over telephone links?
l What is the generic name for a flip flop?
l What is a monostable/astable/bistable multivibrator?
l What is the difference between an active and a passive device?
l How does a music system work? Role of an amplifier etc.
l Define Kirchoffs current and voltage law, then using only non electrical quantities, explain the two laws.
l Explain some fundamentals of circuit design. What factors should you take into consideration?
l What are control circuits and components? What is the criterion of stability?
l What is Solenoid?
-
8/12/2019 PT PowerPack 2013 Support Material - Interview Questions on Electronics, Electrical Engineering
3/3
(3) of (3)
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
GD - WAT - PI Support from PT education - PowerPack Module - 2013-14 ~ Kar ke dikhayenge!
l What are realy? How do they operate?
l How does a Xerox machine work? What are the electronic components in it?
l What is Millmans theorem?
l What is the difference between voltage operated and current operated control systems.
l Name a voltage regulating device. On what principle does it work?
l Can a tube light be operated as a voltage reference?
l Where are wave guides and co axial cables used?
l What are transducers? What do capacitors do?l The telephone line is weak and noisy, what will you do?
l What is Zero Grounding?
l What are losses in transmission line?
l What is skin effect?
l Name some insulators. Describe using the atomic structure how an element becomes a conductor or an insulator.
l Draw a voltage compactor circuit. Why did you use an opamp for it?
l Draw a circuit where the O/P is proportional to the difference of the two I/Ps.
l In Wimbledon, they use a device to signal faults. On what principle is it based?
l What is an inductive motor? What kind of motor do we use in fans?
l What are servo motors?
l What kind of motor is used in a turntable?
l Tell me the important elements of any power system.l What is the highest system transmission voltage operable in India?
l What is the basic difference between a motor and a generator?
l What are the basic laws of Faraday and Lenz? Explain their use.
l Describe a thermal power plant.
l What is the use of electrical engineering in rural India?
l How is EE generated, i.e., various forms of EE generation.
l How is EE made from nuclear power?
l What is super conductivity? What is the latest development in this?
l Which motor is preferred in electrical traction? Why?
l How does Quantum mechanics differ from classical mechanics?
l Describe the control circuit of a starter.
l What is a resistor?l What is baud rate? How do fax cards work?
l What does a modem do? How?
l What are transponders?
l What is Maxwells question?
l What is square root of 1. How is it used in electronics?
l Why do they use flat plug points and 110 V/ 6 Hz in USA?
l How does an ELCB work? What kind of motors are used in electric traction? Why?
l What is VLSI?
l What do you think is the most exciting innovation in communications recently?
l Explain Bresenham line drawing algorithm.
l How does a transistor work?
l In a refrigerator, we need voltage regulator, but for a fan we dont need it. Why?
l What is MSI and LSI?
l What is susceptance?
l Why is HV transmission economical?
tututu