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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Does RCCB do the job of MCB? Lets take 16A RCCB. it trips when residual current exceeds 30mA. does it trip in an over current situation, i.e when current exceeds 16A ??

2 6843

In 3phase power= Root*3*v*i*cos@ What is the power in 2phase....??? and Derive it

Essar,

3 10165

What is the difference between KV,KVAR,KVA,KW?

L&T, PowerHouse, YUI,

6 59292

how to calculate voltage drop in long distance cable? for an e.g lamp of 12 volt ac ,300watt is 90 meter away from supply i.e (x'mer 230 v / 12v)and i m getting 8 volts at lamp terminal ....

1 4342

how you can select circuit breaker for 2000kva transformer?

TATA,

9 23579

What are the applications that use Solid State Drives in your home?

L&T,

1 5914

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

2226

what is the function of generator exciter

NTPC,

11 68300

One of the advantages of HRC fuse links is that they can be used to back up equipment with an inadequate rupture rating. briefly discuss what this means

1 5757

What is meant by the KA-rating of a circuit breaker? In this regard, discuss the stresses experienced by the circuit breakers

3 13876

WHAT IS THE DIFFERENCE BETWEEN KW AND KVA ?

10 34017

In Battery Charger - What is the meaning of End Cell Voltage and Float Voltage.

FLSmidth, Focus, PSEB,

9 42635

How to Calculate the maximum Demand required for a connected load for a manufacturing Plant

6 81864

How to design harmonic filter at the project stage without nowing the harmonics levels

2175

How to connect a Restricted earth fault relay for 2000KVA,11/0.433 KV Distribution Transformer and What is the neutral CT ratio should be selelcted for 2000 MVA Transformer for estabilishing the Restricted earth fault relay

1 4026

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Un-Answered Questions { Electrical Engineering }

State magnitude criterion.

1069

All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

1607

howmany electrician should maintain for a 1000 kva used plant... in kerala..

2068

i am going to attaned the engineer (disign)iterview at HAL please give me duid line

2252

pls tell me function of closing coil of A.C.B.

3334

What are the advantages of thermal power plant?

1127

the typical output of a solar cell is........

2308

how to calculate the cable current ratingand and how much of distance the rating will be ok will the distance is incresed what the action we take

2083

What is the dc grounding system and what is diff between AC/DC grounding system?

2070

why any centrifugal blower draw more current in starting. consider id fan and fd fan?

1813

What is phase cross over frequency?

1076

Give the topology of current amplifier with current shunt feedback?

1179

What is the minimum IR value of HT/ LT cable? Pls post separetely!!!!!

2385

What is mean by hot and cold loop testing? What is the difference between them?

1083

how to generator maintenance (A Check, B check,Etc)

2257

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