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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

State the difference between Surge Arrester and Lightning arrester,Both are same or not?

7 38697

please mention the minimum IR value for different voltage systems

6 8579

which types of tests are required after commissioning of 6.6 kva tranformer?

Reliance,

3 6402

What is battery Limit ?

NDDB,

4 24842

Why electrical heaters are not provided with overload relays in circuits

1 4868

In transformers Which type of connection is preferred for harmonics to be minimum. primary : secondary star without neutral:open delta star with neutral :open delta star without neutral: delta star with neutral : delta explain why

Genco,

1 5080

The exciting current of a transformer is non sinusoidal. why?

2 11193

Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 14844

Give the selection criteria of a 3 Phase transformer for industrial purposes ?

NDDB, TATA,

5 12084

what is the difference between between open delta and broken delta?

Reliance,

5 28487

can any one provide some material?

1 3505

what is the requirement of commutator in a universal motor?

3 5563

Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader

8 24215

Why Neutral Earthing pits and body earthing is interconnected

Taj Group,

3 15370

Why Earth pits are inter connected

Airtel, Taj Group,

8 20606

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Un-Answered Questions { Electrical Engineering }

what is meant by surge? what we called for high currents?

1962

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1865

What is the unit of charge and current?

1116

Define damping ratio.

1199

Whether the vacuum contactor requires Short circuit protection?If No,why?

1999

How much ph is maintained of water resistance starter for slipring induction motor ?

2370

Explain the operation carried out in thermal power stations?

986

power transmission pole used one support , that only for support or earthing

1924

if we install two earth pits with a clear space of 5m without any interconnection,by checking the digital multimeter will it show continuity between earth pits? If so what would be the approx. value

1887

difference between the applicability of nortons and thevenin theorem

2047

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

1968

how does ELR works? explain

2626

Why is the air gap between the pole pieces and the armature kept very small?

1355

In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

1813

How much pf maintan in dg set in 6o% load,when Dg runnig Neutaal Earthing removed what happen.

1949

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