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 real time system type definition

1 3987

when the PFR (POWER FACTOR REGULATOR)change a step to zero,one of the RCCB will triped off,is it the changing step of this PFR effect the RCCB?

2 4424

IN HT MOTOR HT REFERS TO HIGH TENSION OR HIGH TRANSMISSION?

11 16619

what is the advantage of pwm pulse compare to squarewave pulse.

2 6612

What type of motor is used inside computer CPU.

Bhel, TCS,

11 29598

Why in earthing, the earthing plate is put in vertical position? and further what is soft coke that is used in earthing?

Wipro,

3 13219

What is the difference between Relay and Contactor

Siemens,

35 158468

how does an energy meter works?

4 8255

Why water bubbles when D.C. Current is passed through it? Why not when A.C. Current is passed?

2095

what is joule?

2 5252

what type of protection and safety req. in the 220kv substaion and area around the substation

2 9559

what is the basic construction diffrance between servo motor ans sqiralcage induction motor

2431

What is the rating factor for copper cable ( Specific value according to the type of laying ) & the voltage drop?

1819

I AM GOING TO ATTEND APTRANSCO ON 26TH OCT 08.PLEASE SEND ME ANY MATERIAL OR TYPE OF QUESTIONS OR EXP QUESTIONS.

Power Grid,

1908

We have 250 KVAR cacitor bank & our average load is 200kva but our power factor is average 0.66 how can we maintane it? how can we balance our load?

4 9209

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Un-Answered Questions { Electrical Engineering }

send me all basic electrical question and answers

2871

what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

2735

In Dyn11 power transformer if any one of the 3 phases connected to earth in star connected side then please explain effect of the current flow in delta connected side of transformer.(In this case if one phase is shorted to ground in star connected side then we observe the current flow in two phases only not three phases in delta connected primary side. Please explain why it is so?)

1737

In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

1715

List the advantages of star-delta starter with induction motor?

962

what is the ATS .And how it works.

1563

why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

2112

Safety of dry type transformer

1914

can some one clearly explain why -48 volt DC use in telecom site????

1645

why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

2193

what is electrical machines

3620

hey guys help me out.....what are the industrial uses/functions of nozzles in industries

1535

how the characterstics of control valve being done

2025

what is the saturation point of crgo lamination.

2194

if we give 60 hz single phase supply to the transformer used in europe , than what will happen

1902

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