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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Difference between UPS and Inverter?

HCL,

7 12612

How to configure the drives in PLC, through Profibus commnication. And to how to address it?

2838

How would you supply a single house hold load from a 3-phase supply coming out of a sub-station?

Power Grid,

4 8682

How would you supply power to a village which is very far from a sub-station and has only a 11k?

Power Grid,

4 8480

At site, we have 30Kw motor (3 phase, 400V,50Hz) and FLC 54A as per the nameplate. At the time of starting it draws 840A instead of 390A (7.2%). As per the data sheet also its 390A starting current. it thru a dol starter from the MCC. can anyone tell what is the problem in the motor

ME,

5 11216

what is the load amp for 1 HP 3 phase Motor ?

15 66069

how much Hp motor is required for water suction pump in home uses ?

1 5235

What is the Derating factor of power cables when exposed to direct sunlight in (both PVC & XLPE).

1 5477

what is different between installation and commonissonig.

3 5728

tell me about eletrical contractor

TATA,

1955

why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1906

hai iam arunkumar. i have applied for an section enginner in rrb. i want lat 5 years solved question papers. if u have please sedn it to arun30682@gmail.com

RRB,

1822

What are the causes ,revers rotation of a kwh meter?

2 5693

What is the difference between a Junction Box and a Marshalling Box?

8 130487

IN 3 phase induction motor where we give i/p supply & how its working ?

2 4519

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Un-Answered Questions { Electrical Engineering }

LET ME NOW MORE ABOUT icu and ics for circuit breaker. how we calculate the rating of circuit breaker and i c u and ics values

2875

Define relative stability.

1066

what is subtransient , transient and steady stateac components

2169

How do i carry out or know the vector group of a Dyn1 and Dyn5 transformer

2048

how to test power transformer.YNd11

1562

tell me about roaster switch .& what is the function in transmission & distribution?

2670

How much of the total hydro power potential has been exploited so far in india?

1121

How colour picturetube works & how many year it will works.

2034

What should be the values of settling time, peak time, steady state error, overshoot, rise time, MPOS (Maximum percent over shoot) to keep the system in transient state, to keep the system in steady state ?

2253

1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

2037

Pl.brief me any electrical major fault you have rectified.

1960

# 4 hi friends i m from electrical branch and seeking for tech. + apti. both papers of hpcl plz get it available as soon as possible my email id is sumit_lig189@yahoo.co.in

2003

What are books to be referred for KPTCL exam?

3683

difference between power surge and switching transient

2094

Do you know what is dry-out test in x'mer

2651

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