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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Which type of starter to used which type o motor

Crew pvt ltd,

1757

Dear sir, please tell me how many day use CTPT transformer

Daya Engineering Works,

1 2791

What is the kva?

Makino Auto, SAL Steel Power, Sapphire Group,

2 3652

Why NGR is provided in sub station?

MMS,

4 4823

why moisture formation found in XLPE Armoured cable outer sheath

1766

I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.

MindSquare, Sical,

1653

transmission line losses

SVS Constructions,

1 2984

Why R ph of Hv and Lv is shorted or joined together while taking vector group?

IOCL,

1 2975

working principal of online ups

Delta Power Systems,

1722

Why line VTG = √3 phase VTG in star? How?

Endurance International Group, Infosys,

1555

Why Generator KVA not in KW ?

Bygging India, HHH, Tata Motors, TVS,

3 5074

what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?

AB, JLL,

1574

after applying C-License in how many days we get it?

2 2906

750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

2 3025

I have 30 kw motor load & i have selected 10 kvar capacitor bank for power factor improvement.my existing p.f is 0.85 & proposed p.f is 0.99 so ,is it right selection? 2 nd question how to connect c.bank whether in delta or star connection & how to decide it?

1 2825

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Un-Answered Questions { Electrical Engineering }

what is the diff. between x'mer , isolation x'mer & ultra-isolation x'mer ?????????????

2284

what is the difference between b c d curves on mcb

1766

Compare salient pole and cylindrical rotor machines.

1847

1.What is captive power plant? 2.What is national grid?Give brief idea.

2115

how to know the diffrential relay setting of 06mva step- down (delta-star)transformer?

1989

what is the minimum recommended leakage current of an earthed cable connected to the body or skid of an alternator

2006

how to minimize earth resistance upto 2Ω, if the resistance is 6 Ω ?

1803

How to synchronization will be done between two DGs ?

1722

Is it possible to obtain 480v or 550v in single phase output by giving the input to 230v to a single phase torodial type transformer without using a stepup transformer?

1957

what is the Pickup/drop off ratio in BCPU relays

4590

Different STANDARDS (BS, IS, IEC etc) gives different informations on CT specification. How they correspons w r t each other (i.e I mean to say BS provides "knee point voltage" but IS does not, then how can i select CT)

1934

formula for calculation of switchgears(i.e. contactor, fuse, cb, relay etc.), if load current is given?

2163

If rotor works in clock wise what happens

1862

what is the advantage of connecting capacitors in delta than in star?

2060

I completed iti in2004 I was worked in A grade contractor can I get c licence

1676

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