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 are the types of cables?

3 5948

suppose there is afault in transmission line connected to a generating station, then what r the adjustments u will take to without loss of synchronism?????

NTPC,

2 4858

what is the difference between UPS & Inverter

HAL,

7 14363

What is the reasonable voltage between Neutral & Earth of an electrical system for good earthing?

HAL,

6 11748

What is the general power consumption rating of CPU CRT type and Flat type, Monitor,Printer, projector, Scanner?

HAL,

1847

What is the current carrying capacity of 0SWG,3SWG,10 & 12 SWG solid bare overhead copper conductors?

HAL,

3391

what is starting current and use of starting current?

3 7905

during parallel operation of two ac generator which condition must match before taking both parallel i.e speed /voltage rating /kva/exciation

2 9288

model question paper for supervisor trainee

Bhel,

1991

what is the current density of copper & alluminium.

1998

Can 60 Hz transformer be used inplace of 50 hz transfromer?

1 5857

IF i have switchgear with busbar current rating of 1000Amp 35kA then is it necessary to have outgoing breaker kA rating to be equal to busbar kA rating?

L&T,

6 14343

The cable area of cross section is 185 sq mm. How to convert this to the diameter.

Syscon,

7 16193

can we use transformer for 70 Hz?

6 8234

can transformer develop three phase poer from a single phase source?

2 4450

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Un-Answered Questions { Electrical Engineering }

hello friends.. I have a doubt regarding the operation of dc machines.. I studied in a text book that a dc machine can be used as a generator and as a motor.. is this possible? If so,please send me the info about this topic.. you can also send your info to my mail.

1984

how we arrange the hv side with delta connection in case 33/11kv of transformer.

1948

Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

8005

what is the ATS .And how it works.

1549

During Starter Panel Com missing I Found The Main Incomer 40Amp MCB 10KA Trip When Motor Change Star To Delta Motor Rating 20HP BUT When We Use Same MCB To Other Motor It Does Not trip Or What Is Necessaries for Star Delta Starter MCB SFU MPCB OR MCCB And What are The Breaking Capacity of MCCB in the Motor above 15HP

1838

Safety of on line ups

1896

i will applied in 1U-1W on 440 volt primary delta side. what is the result of magtic balance test

1740

What does quality factor depend on in resonance?

1039

how to determine motor size for a fan application?

2231

is it possible for different brand of H.V transformers to run or operate in parallel to each other? if so how much disturbance can this affact the H.V bus bar?

2082

Trafo ratio is 11kV/6.6kv,Vector group is YND11. What will be the effect if secondary is used for earthed system.

3757

What is servo motor? what is its purpose?

1995

How to calculate the sag on transmission Lines.

2923

Inverter. converter. Ups.MCB.solar.alternators. motors.

1888

What consists of 2 or more thermocouples to be connented series?

2252

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