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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

what is the power factor

Heidelberge Cement,

13 15799

what is the operating principle of contactor(power).along with disection?

NASA, Tech Mahindra,

3 17543

in india why we not use frequency above 50 hz for distrubuting power ?

1 4983

howmany types of compresor is there? and how to calculate compresor capacity?

3 6096

how to calculate generator capacity?(kva)

SMEC,

2 19602

flush point of transformer?

2 4775

Hoe to calculate body earthing conductor size ?

IES,

1 9897

how can alculate the apfc panel rating?

3 15247

why are using bus ducts ? why not using cables

12 49419

How to select circuit breakers rating eg. if i select a circuit breakers of capacity 40 amps DC with operating voltage 28 volts and if i what to use same circuit breakers for 300 Volts DC application what is the current rating of this circuit breakers.

1774

what is the defination of Cable database? What are the points are considered while preparing cable database? Is there any sample available for cable database?

1945

WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

2124

why the three phase transformer's star point does not sparks or seperated? while we often see that two phases touches each other it sparks and ocationaly conductor breakes out.

4 8794

Can we parallel two grid with different incoming voltage. Ex.let say one grid is 132kv and another is 220kv.

2 4943

GIVE CONDITION FOR MAX EFFICIENCY OF 3-PH TRANSFORMER AND D.C MOTOR

BARC,

2 7452

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Un-Answered Questions { Electrical Engineering }

Single phase and threephase power calculation

2189

ITI r/tv trade APPLY (J.T.O VACANCEY) ALSO INCLUD AITT ELECTRONIC,WRITEEN XAM DONE 23.03.10 BUT NO RESPONCE WHY ANATHER ID gopal_gh007@rediffmail.com

3478

what is residuel magnetism. and how order lead acid batteries for 24 volt. emergency lighting system.

2066

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

1922

all details of DG UPS HVAC

2149

While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1989

what is the formula to calculate voltage drop/loss on 66KV Transmission Line?

3751

why we used dc supply for field in dg set

2435

We need to current density & short circuit calculation at 65kA for aluminium & copper busbar.

1802

Why squirrel cage motor can only use with low starting loads ?

2117

where does 22kv line starts

3154

what is the meaning of the symbol << >> put in transformer drawing

2061

HOW THE OLTC TRANSFORMER SAVE ENERGY IN COMPARISON TO OFF LINE TRANSFORMER AND IS IT ECONOMICAL TO REPLACE THE OFF LINE TRANSFORMER TO OLTC TRANSFORMER

2259

testing of Vector Group – YNaoD II

2993

what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

2434

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