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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Neutral CT for 45MVA 132/11 KV YNd11 Transformer. NCT REF CLASS-PS or 5P20 with 20VA burden which is suitable.

1 3030

If a three phased motor or not working phased change on poles so how to find which one red yallow & blue

1 2728

What is difference between ct&pt transformers?

Adgas,

4 5638

what is difference between neutral& grounding?

6 5971

what is thermal resistance of PVC Cable.

1805

What will happen if we give 220v supply on both sides to the bulb

Exide, Sumeet Industries, Toshiba,

7 11284

In Induction machines which type of emf is induced ( statically or dynamically)?

1 2619

What is the difference between multimeter

1968

How does a ideal c.t. works ?

2010

What is the lower limit of break-down voltage of converter transformer.

Tata Steel Limited,

1911

What is Harmonic affects in power system. what is unit of harmonics and how to measure it. how much value should be in power system.

1 2915

Is RTCC panel needs any control supply.

HPCL, Schneider,

2052

What is the maximum advisable distance where it is required to interconnect a 500 KVA 480 V 3 ph transformer and the main panel or MCC ignoring the voltage droop affectation, does it is exist any standard about it?

2 2949

what is the difference between c power and U power acb breaker

Radisson Blu,

6415

11 KV distribution system where neutral is produced ?

ciss, TATA, Tata Motors,

4 6001

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Un-Answered Questions { Electrical Engineering }

what is the difference between electrical and electronic choke?

1966

Name a govt approved university which have 100% online engineering course.

1717

Tell me the reason of connecting domestic t/f primary in star or delta,and also secondary side.

1971

How to calculate phase to phase difference ?

2252

What is the basic principal, by which DC voltage level is increased more than the supplied AC voltage during conversion. As upto AC level it is contorrled by firing anlge but after maximum level how is it possible.Please clear picture. OR we have to supply the higher level AC?

1968

List few applications of d.c series motor?

1133

what is mean by D.O. in distribution line poles?

1667

Define damping ratio.

1238

How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

2043

Why MCCB is Getting tripped sometimes when there is no load in the Midnight ?

1980

if any body have question paper of railway (section engineering),then plz send me .i will thank of him/her.

1992

surge tank, hrc fuse, earthing transformer, firm power objective type

1639

Why collecting electrode of ESP to be earthed

2152

How is efficiency of DG set calculated? At many places I found the efficiency to be mentioned in percentage. But at some other places I found kWH/ litres. I want to know how dimensionless percentage value is arrived at?

1917

what is the ms flat constant for calculating earth mat design calculation?

2516

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