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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

The formular of how to calculate a cross sectional cable to feed an electric motor. Examle: 15KW, 26.1A, 415V. Calculate the cable size in mm2

Sona,

3 7882

Can you explain the phase displacement between primary and secondary of power transformer of any vector group(for ex)?

1 3213

I have two power supply.a)govt. power b)Captive power.3 phase load connected inside factory.when source change govt. source to captive some motor rotate reverse. Is phase sequence changes when if off & on?If I off generator & on it again is it possible to get changed phase sequence??

ABB,

4 6674

what is the relationship between current and frequency in AC circuit?

3 40446

if i have one capacitor=80 micro farad which correct the unity power factor,but i want to make capacitor bank who correct the power factor.so,how to split this capacitance value?

2 4379

What is function of condenser in fan?

3 8555

WHAT IS RMU AND WHAT IS ITS FUNCTION AND HOW TODISCONNECT

Bhel,

3 8492

WHAT IS REACTIVE POWER?

2 5437

In the diesel generator wihch type of power we can get it ? Like AC / DC

Aditya Birla, Indian Steel, PTPS,

2 5685

in breather of transformer how sillicon gel absorb the moisture?wat happen when the moisture in that oil?

1 4169

why transformer ratings are in kva

4 6577

What are all the points to be checked while decanting diesel from tanker lorry to HSD YARD

Cisco,

1 3866

What are all the points to be checked for a newly re-winded motor before installation

Cisco,

1 4378

sail kaott diploma ece ke interviw me qus.kis parkar ke aate hai aur G.S me kya puchate hai kya sameedyaan me kis parkar ke qu.puchate hai

Sail,

3439

What motor is used in ceiling fans and what motor is used in table fan.? why table fan is costlier than ceiling fan?

Bhel,

6 28748

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Un-Answered Questions { Electrical Engineering }

What is an ideal transformer?

1174

WHICH SIZE A.B.CABLE IS USED FOR 11KV.

2201

when elecromagnatic waves are propogated in a wave guide?

2008

List examples of voltage source?

1035

How to do cable earhing? whether by grounding Armour to ground or by running extra G.I wire along with cable? which one is preferred mostly amoung them? If the second one is more preferable how many GI wires to be run along with cable (1 or 2)?

2140

I COMPLITED MY B.TECH AND 10TH CLASS WITH 70%MARKS BUT 12TH CLASS 55%MARKS..CAN I GET INDIAN RAILWAY RECUREMENT EXAMINATION?

2186

What is meant by cold loop test in instrument

2610

How to calculate per unit impedance of transformer?

2203

What conditions are required for transformer to operate at low frequencies ?

2005

HOW TO CALCULATE THE REGULATION OF 100 AND 25 KVA TRANSFORMER

1982

I NEED RRB SYLABUS FOR JE ELECTRICAL ,PLEASE SEND TO MY E- MAIL ID joo28_eee@yahoo.co.in

2855

Actually I have a doubt on neutral and earth.we use Ac power without taking neutral by connecting to earth,but at that time does it affects on efficiency of any electrical components or no? If yes how?

1402

what is meaning of 230volts ac 50hzs ac supply is it rms or maximum to getting ac 230v what amount of max voltage they will send

2069

What are the advantages of hydropower?

1105

What is power in wattage of 8.5 TR AC

1665

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