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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

can any one tell me about the Extra low voltage systems?From where we give supply to these type of systems??

MCB,

1364

How the power factor is more in high speed machines

1 2416

what is DRP panels?

SECL,

1449

Why we say three phase voltage 440v.

VDP,

2 3706

if the field circuit of a d.c. shunt motor running without load gets opened, then the motor will

3 3891

Generally we denote power in 'p',voltage in 'v'but why can't we denote current in 'c' instead of I.

Bhel,

4 9480

why do we prefer alternating current in india where as in USA prefers DC?

Bhel, GMR, Texmo,

3 6498

What will happen if 33 kv is given to a 11/0.415 kv Distribution transformer?

SECL,

2 3834

For an 100kw generator, only 50kw of load is connected. Will the generator generate only 50kw or 100kw. If it generate 100kw what happens to rest of the 50kw. What happens if we connect more than 100kw of load?

L&T,

2 5071

What is the difference between earth and neutral

ABB, Tamboli Engineers,

4 7260

what is a,b,c,d checks diesel generator?

AFMC,

1 2701

what is alluminium arm in ab conductors

1343

WHAT HAPPEN WHEN A DROP OF WATER MIXED UP WITH TRANSFORMER OIL ?

4 6021

What is the difference between AC and DC injection methods for rotor earth fault protection

Asian Alliance Insurance, NBVL,

1513

Why collecting electrode of ESP to be earthed

NBVL,

1453


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Un-Answered Questions { Electrical Engineering }

How can we calculate strength of copper hich is supplying electric power to heater and in it hold the heater also and what r all types of forces which is acting on it...

1276


What tests should i carry over on a newly rewinded DC Generator with voltage rating of 38 volts and current rating of 350 amps, to certify that the machine is OK?

1279


Name the types of motors used in vacuum cleaners, phonographic appliances, vending machines,refrigerators, rolling mills, lathes, power factor improvement and cranes.

520


Which is the oldest hydropower plant in india?

504


What are the effects of electrical faults?

460






what is size of 3phase 4wire cable to be used for 11 ton ductable A.C and how to calculate cable size for different load

3153


What is rotary phase converter?

445


What happens to a motor if it is connected in Delta connection

423


What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

2800


How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

955


What is the meaning of HT Trivector Meter ?

1756


how does a submersible pump work..?

1240


What are unstable systems?

483


What is notching in dc machine?

1270


how u select control transformer for a mccb panels or any panels?for expample we hav 440 volts maim supply and control volts is 230v?

1438