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 automatic voltage regulator and it is used?

HAL,

2 4677

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 ??

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

44 48499

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

5 12754

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

5 10228

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

4345

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???

2103

How does a VOLTAGE OPERATED DIFFERENTIAL RELAY work??

2 7897

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

Lance, MBM, Polycab,

9 36763

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

1978

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

1926

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

3 6740

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

1946

What is the difference between MCCB, ACB & VCB

7 19516

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

7 14557

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

2036

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Un-Answered Questions { Electrical Engineering }

WHY THE COLOR OF OUTDOOR TRANSFORMER IS BLUE ONLY???

2121

Readings of ER300P Trivector meter

6425

What is installed in PAC that is control the humidity

1516

How is the speed of a DC shunt motor related to the armature current?

1183

what is formula to cal cute earth pit numbers and size of earth strip used in earthing?

2216

1) What are your personal strength? 2) What are your personal areas of improvement? 3) What are your expectations from from a particular job? 4) what are your carrier objectives?

2519

how can found motors folt current ? how can disided circuit breakers caoicity and breaking capicity ?

2165

Vaccum circuit breaker

1390

8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

9286

Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?

1104

we have a lot of model of rectifier but thyristor rectifier is the most rectifier that use in power system. Do you know why this rectifier is used?

1787

R=*¶ l/a

1618

why do you add the load short circuit impedance when considering short circuit amperage. It seems that you should only consider supply. If you need to consider loads and you don't know what loads are to be added , what would be a good sub-transient reactance rating for the loads?

1796

what are the breakdown voltage rating of mini- curcuit'transfarmer!

2172

In synchronization circuit what is the function of Interposing voltage transformer(IVT)and Reverse voltage transformer(RVT)

11831

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