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,

1882

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 4737

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

NTPC,

7 11209

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

CSEB, SRF,

2 10848

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 14300

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 83235

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

Arabian Pipes,

2 6129

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

2307

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

2017

what is alternater?

8 9406

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

1 4643

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 4501

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

1947

what is the function of rccb how it diffrentiate between elcb

1 4315

What is an Antipumping relay ?

4 8428

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Un-Answered Questions { Electrical Engineering }

why ht motors are star connected?

1878

what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

1970

How to select a cable size for particular load?

1828

If I have 3 essential main switch board and 3 incoming electricity ,but only 1 genset running is that possible.

1639

In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

2097

How can calculate the rating of a alternator for a given specific load with formula

2343

When steam condenses and becomes water at the same temperature, the specific heat for the process in kJ/kg k is

1135

how line turns ratio changes in 3 phase with change in connection

1987

explain the Trip supervision circuit

2152

What is the high series capacitance winding on high voltage power transformer ?

2170

What is the role of power pack in substation protection system?

2699

Is single load(eg: three phase motor) having all the components like positive,negative,zero sequence components during fault condition?

1824

How to Preparation of online test

1693

In PFI plant one stage capacitor connection is directly connected(with out megnetic contact controll). but why?

2294

which type of amplifiers are used in multimete?

2211

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