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 the formula to find maximum load of a DG (Single phase and Three phase)?

1 4231

What is maximum demand?How can we caluclate it?

TATA,

3 6356

Which oil is used in Transformer?

6 9315

How many types of Transformers are there?

8 11988

What are the parts in a inverter?

2092

What is LOTO?

6 11084

How many types of earths are there?What is the maximum ohms of earthfit?

3 5607

Which neutral is use when DG(3 Phase)is running?

3 5576

What is the purpose of stablization resistor in high impedance bus bar protection

Jindal,

2006

defined power system?

Spanco,

3 5510

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

Jindal,

2492

what is current

5 6595

Explain working of PIU(Power Interface Unit) in Telecommunication,

ACME, ATC, Bharti, HCL, INDUS, Pace Pharmaceuticals,

7 75807

What precautions we have to take while handling electrical equipments?

Bharti,

1 4290

What current can be carried by 25 sqmm copper cable safely?

Bharti,

6 11675

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Un-Answered Questions { Electrical Engineering }

What is the formula for calculating no-load current?

1097

how to calculate the magnetizing current of ct ( 800A/1A) for Relay 64

1454

What is milivolt dop test in Busducts? What is its significance & procedure to do the test?

2095

In EHV transmission line a neutral grounding reactor is often placed at neutral point of shunt reactors. What is the recommended protection for this neutral grounding reactor? Should I use a fast closing switch to bypass neutral grounding reactor when this protection operates?

3234

Please explain, how to test vector group of tranformer(Delta y1) . Thank

1701

I am applying for NTPC examination.Can we please provide previous paper to my mail prasad.chintala108340@gmail.com

2196

Why reactors use before incoming of ac vvfd drive?

1857

DEAR SIR/MADAM,CLEARLY EXPLAIN ABOUT CRAWLING AND COGGING EFFECTS IN INDUCTION MOTOR.

1901

A 15 kw squirrel cage motor having a maximum efficiency of 90% on a continuous full load has temperature rise of 42 degrees celcius after 30 min and 52 degrees celcius after 1 hr under the above operation conditions. a) calculate its final steady state temperature rise on continuous load and the heating time constatnt. b) if the motor is operated on a short load for 9 min estimate its temperature rise. c) calculate the maximum overload that can be applied on a short, 9 min rating so that the temperature rise is the same as the final steady state temperature rise on continuous load.

1108

What is Phase margin?

1103

As an electrical engineer what are the responsibilities which i can hold in TCS?

2208

it is possible to measurement of tension of slipring induction motor(SRIM)carbon brushes, any maesuring instruments are available in the markets.

2015

There is air in a room . the top and bottom of the room are at constant temp. T1 and T2. DRAW THE temp profiles if a. T1 greater than T2 b. T1 less than T2

1887

Could u pls tell me the NPCIL electrical engineering interview questions for Executive trainee, and also guide me how to face the interview.

4484

what are symmetrical and non symmetrical components in electrical installation.

2080

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