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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Tell me about ur past electrical maintanence job

Apollo Power, Solar,

1851

What is converter transformer? Diff b/w converter transformer and distribution transformer? why we use converter transformer in place of giving supply to drives?

1 4653

What is the tolerence limit between neutral and earth in 230 V AC System?

NTPC,

7 11020

Why the vector group of excitation transformer in static excitation system is Dy5?

CSEB, SRF,

2 10703

In a 3 pin plug holder, what is the purpose of diameter of ground pin is larger than phase and nutral pin

Coal India, HCL,

9 14048

How to calculate the breaking capacity(like 15ka,20ka) of Circuit breaker (MCB,MCCB,ACB)

Career Excellent Sdn Bhd, Neona, Northern Max Engineering, Sps Renewables, Terasaki, UEM,

9 82912

what s a servo motor? how to control the servo motor? and its application, purpose of using?

Arabian Pipes,

2 6033

Can we indroduce the principle of single phase induction mator to Transformer? i.e. by Producing rotating flux in the transformer.

2259

i've iocl interview.. if you know the interview process please give me information..

1951

what is alternater?

8 9134

What is core balancing in Power Transformer. What is the affect of an unbalabce core.

1 4564

Equal resistance of 100ohm each are connected to the arms of whestons bridge, which is supplied by 2v battery. The galvanometer can sense a current low as 1microAmp. What is the smallest resistance that can be measered.

GATE,

1 4417

I need HT sphere gap calibration table. Can any body help me.

1908

what is the function of rccb how it diffrentiate between elcb

1 4211

What is an Antipumping relay ?

4 8283

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Un-Answered Questions { Electrical Engineering }

what are the standard IR values should be of R-E, Y-E, B-E, R-Y, Y-B, B-R of VCB in closed condition and in open condition for 500KVA & 1000KVA transformers. and what is the acceptable range when tested by 5000V megger.

2288

what is spadar bar .why I use in DC generator.

1878

what kvrah y we need to take the readind of that

2050

The size and construction of bushings in a transformer depend upon?

1718

State the types of distortions in amplifier?

1165

please tell me when we start motor without load in star or delta connection whose current above condition,pl write formula

2254

ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.

2321

In a synchronous motor. if start is running at high speed. What will be the starting torque : Higher Lower Zero

1668

How efficiency of thermal plant can be improved?

1164

Why generation voltage in thermal power plant is between 11kv to 33kv?

993

please send me jindal previous aptitude and technical question and answer.my email id is deep_raj@live.com

1934

PLEASE ANYBODY HAVE ELECTRICAL CIRCUIT DIAGRAM FOR CHMER PULSE CD 60M SPARKING MACHINE.PLEASE MAIL ME SUPRIYAAYYAPPAN@YAHOO.CO.IN.

2761

ii) A shunt motor supplied at 230V, runs at 900 rpm when the current is 30A. The resistance of the armature is 0.4 ohms. Calculate the resistance required in series with the armature to reduce the speed to 600 rpm, assuming that the armature current is then 20A. [12]

2299

what would happen if reactive power (kvar)is increased (more)or decreased (less)? how much exact reactive power should be maintained? and what should be done for that

2231

what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor

1965

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