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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

types of motors suitable for escalators with reason

2 11319

what happen if we give 220 volts dc supply to d bulb r tube light?

Genus, RMSI,

4 10128

Explain briefly about current , voltage and power

L&T,

6 9882

define electrical field?

L&T,

6 8562

Testing report of Earthing of 3.15 MVa PTR.

2534

Off-circuit Tap changers in distribution transformer required

1 3565

what happens in a genarator when rotor supplied with ac instead of dc

3 5226

why we are using in reverse power relay in generator singranizing

Dalkia,

1 2820

what happens when we give ac supply to the dc motor?and why?

4 8688

why neutral wire don't shock?

9 13925

what is the benefit of floating our DC source? if i have two floating DC source of which 1 has a ref voltage of -21VDC and the other of -18VDC. can it be connected in parallel to share a common ref voltage? if not, how do i make both sources to be of common ref voltage? tks

1851

Why CT secondary is grounded?

GE,

11 58089

what is ACB and its function?

3 6426

i have old tape recorder speakers(analog).nw i want to use it for my computer system.can i use it to my computer systeno m by using digital to analog converter??? what changes should i do in the system????

2009

how many types of cbs?with pcific ratings?

Bhel,

1 4018

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Un-Answered Questions { Electrical Engineering }

what are the protecyion of transformer & generators

1928

how can you calculate fault level ?

2345

Plz tell me how we can find that particular company has vacancy or not

2232

What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

1957

How to know of any cable size if there are not written on cabl?

1867

why capacitive load is not used in routine life????any reason is there ??????

1692

For a 6.6kV Motor it is recommended to do megger test with 500 V d.c and not more than 5kV d.c but the Hi voltage withstand test should be performed by 12kV AC. Why the dc voltage test should be limited but AC voltage withstand test could be with such a high voltage?

2290

Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

1584

Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

2776

sir,in our plant we r using SATEC PM172E power reading meeters in HT panel side it is monitoring the MB data smart viewer(sever).but last one week we did not get readings inthe server only available in meeter.tell me how communicate meter and server. and also what steps we take for checking.

2189

While testing a ZCT what parameters have to check or measure?

2345

What is a single phase autotransformer?

1051

In HI POT test what is reason for applying the AC VOLTS and DC VOLTS in different applications what is the nessesity for this ?

1895

How PSV sizing being done

2275

all interview questions with answers of ntpc (2000-2009

2171

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