Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is automatic voltage regulator and it is used?

HAL,

2 1983

Questions :- HR- Q.1 about yourself & family background ? Q.2 Why u choose Power sector as ur carrier starting not any other sector ?? Q. 3 What think abt NTPC ? Techincal Questions:- Q.1 about Vocational Training……What u did , see the main equipments….etc Q.2 Why a transformer Noise during its running condition ? Q.3 about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ? ……..some discussion type ? Q.4 What is relation between transmission lines & Communication lines ? Q.5 Which Machine u will prefer to use at a place where flammable gases are coming out & why ? Q.6 how fault in an electric system is detected & hw protection of equipments is done ? Q.7 Why we didn’t feel electric shock in an electric train ?? Q.8 Anything u want to ask from us ??

JCB, Bhel, BSES, DRDO, NTPC, Akona Engineering, Cranex,

44 22219

WILL THE PERCENTAGE IMPEDENCE FOR A ONAN TRANSFORMEER BE THE SAME COMPARED TO ONAF TRANSFORMER OF SAME RATING???

5 6281




Why don't we provide SURGE ARRESTORS for Transformer feeders?

5 5545

How does "OUT OF STEP" relay ,for Synchronous motor protection, work?

2988

Usually in the L & T make MCC feeders' power circuit,we have BMR after the MAIN CONTACTOR.,can we interchange their position, keeping the control logic same???

821

How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??

2 5435

Why do we give DC excitation to AC Synchronous motor??

Polycab, Lance, MBM,

9 27285




How is the percentage impedence of a transformer fixed at design stage???

787

Why can't we take NO LOAD TRIAL of motors having V1 mounting??

678

Why is it that variation allowed in supply voltage to motors is (+ or -)10 %, whereas that in frequency is (+ or - )5 %

3 3818

after how many spot we must chang secondry cable in portable spot welding gun?

698

What is the difference between MCCB, ACB & VCB

7 12972

what is mean by NTPC?,why didn't electric shock in train?

7 9069

wat's the procedure to take short circuit current for cable selection

768


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Un-Answered Questions { Electrical Engineering }

State how to produce a constant rotating field by application of alternating currents to stator armature of a three-phase squirrel-cage induction motor

1210


what is the minimum pay scale for electrical engineer (building construction)in kuwait? plz revert back with yrs of experience & pay scale respectively.

901


In the N-series schneider reclosers. What is the difference between current during fault time and current at tripping? This appears in the Event log in an event of a trip out.

501


Is it possible to connect a safety device in to parallel?

783


What is the function of under voltage release ?

210






CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

630


Hi friends, i m electrical engineer i want a cdr for migration purpose so anybody have information about this then send me on jayesh_ee88@yahoo.com.please try to me

707


what is the condition for YnD11

1179


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.

683


how we select ac fuse rating of an power inverter???

676


how we can calculate power factor in single phase & three phase ?thank u

830


derive DC RMS value for half wave rectifier?

1935


can we start slipring motor on star delta like we start induction motor ? if yes where will we connect ?

716


what is the reason the main breaker is trip during the motor is running? (some time the breaker is not trip)

551


why chock were used in old tubelights but are not newest tubelights?

526