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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How are calculated the aluminium busbar cross section area?

2 9440

Are same transformer be employed for step up and step down services?

3 5939

On what basis primary and secondary of a transformer is chosen?

2 5140

how to male a d.c bettery to blow a 230v bulb?

1 4285

Can a 50-Hz designed transformer be used at 60-Hz system? Is the same remains true, when a 60-Hz designed transformer be used at 50-Hz system? Consider only frequency variation. The voltage remains as rated value in all cases. Justify the answer.

2 7894

How to protect the water pump by no load running.

Cushman Wakefield,

9 13915

Hello, im taking an introduction to PLC..and i'm having a hard time on creating a program for 2 lamps blinking alternately with this button characteristics: 1.) One push button (starts upon pressing) 2.) Same push button (when pressed again, will pause the system) 3.) Same push button (when pressed again, will continue the paused system) 4.) Same push button (when pressed within 2 seconds, will shut off the system) Pls..i know this is just a simple problem for you guys..

2 4294

In n high voltage 11kv system What happened if 1 of CT cable (IDMT) loose.Will e/f or o/c trip.please explain detail

1 4198

In UPFC,What is the need for Dc link ( DC capatior)?

1 5085

Can a transformer designed for a particular voltage and frequency rating be used for different set of mentioned ratings? Assume that the winding does not get burnt because of overheating at higher voltage. If yes, then under which constraint it is possible?

1 3174

why microprocessors are named as 8085 ,8086 etc? what's the reason for this???

Bhel, HCL,

15 44239

what is basically a pulse transformer?

1 9011

what is relay multiplier

Atomic Energy Commission, Bhel, Wipro,

1 6278

whose motors self starting synchronous or Induction motor?give fact reason why not self starting another mother

2 5337

SSC JE ELECT.

CPWD, SSC,

1 19246

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Un-Answered Questions { Electrical Engineering }

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

2175

I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.

1653

in wind mill use 2100 kw asychronous generator ( induction generator ) rotor voltage : 3300,stator voltage : 690, rpm : 1511 type : MRL063E04 ' we check rotor resistance magger value found following. R-EARTH - 00 M.OHM,Y-EARTH-34 M.OHM,B-EARTH- 33M.OHM R-Y: 31 M.OHM, Y-B: 00 M.OHM,B-R :33 M.OHM HOW CAN I TAKE DECISION?pls ans. quickly

2259

Can RCD's used to protect the VVVF drive if not why.

2105

hi i have applied for lic of india south cenrtal zonal ,hyd. i didnt get hall ticket till now.let me know how can i get form internet

1968

What is the purpose of stand by earth fault protection for transformer ?

2044

A 400 V, 50 Hz, Δ connected synchronous generator has a field reactance of 0.1 Ω and armature resistance of 0.015 Ω. At full load, the machine supplies 1200 A at 0.8 pf lagging. Under full-load conditions, the friction and windage losses are 40 KW and the core losses are 30 KW. What is the machine’s overall efficiency? Ignore any field circuit losses.

1840

why HT armoured cable does not glanding

4170

How you calculate the repturing capacity of a HRC fuse

2581

why we change the direction of winding in rotor ?how we make the north and south pole?

2002

how to calculate magnetic force genrated by a coil ?

2164

Difference between control junction box (cjb) and power junction box(pjb)?

4248

I have 1500/1A CT If i connect this CT in 6.6KV bus bar means what will be the voltage present in CT?

1963

What is the abbreviation of NGT panel

1995

What is formula calculation size cable wire ?

1909

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