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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how df/dt relay operates & how it works?

1 3736

Maples,

2524

if the load is 80 amp for main fuse and 100 amp for breaker so how can we calculate the cable size (cooper ) .

Bhel,

2117

how can we calculate the cooper armed cable size if the protection load of main fuse is 80 ampere.

1 4170

how can i get the formula to find out the cable size if i know the load of main fuse protection.

1983

What is the distance between body earthing and neutral earthing.?

1 5131

WHAT IS THE DIFFERANCE BETWEEN IP54 AND IP55

2 7020

r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

1764

Iin ESP why positive is grounded ? why not negative ?

2755

why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1894

in india why the generating voltage is like 11kv,22kv etc

Alstom, Ford,

1 5847

hi everybody how to design string combiner box (scb) internal parameters like bus bar and spd (surge protection device and fuse which place to set that,and also bus bar one particular cross sectional how much heat generated and how much power loss tell me Clearly and briefly

2062

bus bar design conditions and sizing pls tell me quickly

1948

What is turbocharger in a generator?

2 5054

when conductor rotates in varying magnetic field the emf will induced in it and it is sinusoidal in nature ...? Why it is not in square wave and rectangular wave in nature?

4 6076

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Un-Answered Questions { Electrical Engineering }

In what condition the HT fuse breakes?

2083

induction 3 phase motor terminal connection

2743

In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

2231

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

3787

While performing stability test of differintial cts how to know the voltage and current on both side of the transformer?

3579

What is the capacity of the Fastners 12mm?

2507

In Generator How suction compression power and exhaust works ?

1994

which protection used in power plant?

1997

In Power Line Communication (PLC) the wave trap is used to block communication signals from entering neighboring lines. My question is this: Why do they allow for different filtering arrangements on these wave traps? Isn't it always going to be a low pass filter since we want the power frequency to go through, and the comm signal blocked?

2034

What are the advantages and disadvantages of open loop control system?

1166

l&t switch FN 63 handle position can we change

2606

What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

1202

how to store the thunder power?

4576

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1923

Approach of a cooling tower is the difference between temperatures of what factors?

1182

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