Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

difference b/w semiconductor and dielectric

2 13575

does any one know where we can purchase insulation oil for high voltage oil filled cables

2341

I am going to appear for the RRB Chennai Section Engineer online exam. Please send me the question papers from 2001 to date to my mail id: vsujith_rajan@yahoo.co.in

RRB,

3 5612

What is CBCT ? Why & Where it is used?

BCT,

14 86511

can any one help me? 1.what is corona extinction voltage&corona inception volatage 2.what is mean by CFVV?

KSEB,

1 13466

Why diversity factor are applied to the load?

2 9927

which type of breaker sould be used for different level of voltage ? (i.e at 11 Kv, 33 Kv, 66 Kv....

8 20553

what happens if commutator is removed in an dc machine?

3 6130

why maintain the Dg PF is 0.8? Explain?

4 15727

What is mean demand of the Plant?

2 4836

How can we checked Killo Watts of Motor & Alternator?

2151

What happen if we re-start H.T motor whose rotor is running at 40% rated speed. Is it will damage motor winding?

1 3570

If an induction motor is restarted before its rotor stop rotating, then what will be the amount of current drawn? Is this current will be the same as motor starting current?

5 7625

without any theoretical calculations, can u approximately tell the current rating of a motor(above 30hp)working at 415VAC.

7 9677

what is meant by negative sequencing in power system.explain in detail

1 2507

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Un-Answered Questions { Electrical Engineering }

What are the main significances of root locus?

1233

tell me about eletrical contractor

1955

When is lag lead compensator is required?

1124

234 MVA Generator 3 phase Short circuit current Values required? Gen set Rating-234 MVA, Gen Voltage-18kv, PF;0.8, Xdv:23.5 %, Transformer Rating-18/380KV, 680MVA,Yndd1 two winding, Step up TR, ZT:35.50 %,X/R 4.33 Gen CB Position, CB open ,Disconnected open, Generator Running Voltage 18 Kv, Bi mistakes generator side earth switch Closed during that time short circuit current level in 3 Phase required, and how to test on site 234MVA Generator Short circuit current,

2031

why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

2040

1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

2296

If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?

1153

can i connect the two phases of scott connected transformer,if not why?

1973

please describe the Transformer setting, Motor setting, I/C setting, Tie setting

1776

what will happen if frequency is below 50 hz?

2028

what is dry and wet frequency withstand voltage? why & where it is used??

2437

STATE USE OF ARC RUNNERS & SPLITTERS ?

1948

What is the function of a neutral reactor.

1867

for compensate 315mh inductance ,how many capaciance required?

2057

Explain RLC circuit?

1178

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