Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the formula of starting current of 3phase and 1 phase motor???

1712

why does fans rotate in anticlockwise direction?

1 3349

how to test a motor from megger

JSW,

5 8664

what is disadvantages of high power factor

4 14911

WHY IS THE EARTH FAULT CURRENT ALWAYS LESS THAN THE NORMAL CURRENT??

Teil,

1736

how to set relay setting? and example calculation...

JSW,

1512

what is difference between vaccum circuit breaker and air circuit breaker?

2 4841

star delta starter contorl circuit... drawing..

1660

why the NGR (neutral grounding resistor) always OFF during DG off?

Bhel,

3061

how to check three phase motor torque value?

Apollo,

1728

how to read idmt curva

1706

what will happen if OLR CT in all phases are short circuted

Indfrag Limited,

1669

what effect will 10 milliampere current cause to human body ???

1 3542

why we use 3 phase in our country?..why no 4,5 or 2??

Siemens,

2 8713

Excat meaning of burden in only one word?

Bhel, DG Electricals,

3 5348


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Un-Answered Questions { Electrical Engineering }

hello friend i wish to study a course related to the electrical construction, controlling and monitoring , which course i want to study? pls give me the name of institute?

1331


clarify types of motor operated valves and advantages

1459


Dear All, I am new in construction company , my boss ask a question at time of interview , If we have 60MW generation and Single Power Transformer step-up we have. if CMR 50/60MVA , ONAN, ONAF respectively , is it sufficient or not ? for that much power to transfer,

1208


WHY NUTRAL GROUND SYSTEM USED IN 33KV SYSTEM

1796


What is the difference between rulling span and wind span of of an Over Head Transmission Line?

1832






The screw thread commonly used for transmission of motion is one of the following types of threads

685


What is earth?

1784


Earth leakage relay basic knowledge principle

1730


When we need up only in o/p 440v, so why we use directly in 11kva in input?

1268


what is the difference between ups & inverter

5469


What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

1614


How seriving & testing of the HT & LT breakers are done. What are the standard Ir values on which we can come to know the test is passed or failed?

1506


how to decide choke rating for drive?

1866


Explain thin film resistors and wire-wound resistors

631


What is the limitation of kirchoffs law?

637