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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

State the difference between Surge Arrester and Lightning arrester,Both are same or not?

7 38952

please mention the minimum IR value for different voltage systems

6 8783

which types of tests are required after commissioning of 6.6 kva tranformer?

Reliance,

3 6511

What is battery Limit ?

NDDB,

4 24977

Why electrical heaters are not provided with overload relays in circuits

1 4938

In transformers Which type of connection is preferred for harmonics to be minimum. primary : secondary star without neutral:open delta star with neutral :open delta star without neutral: delta star with neutral : delta explain why

Genco,

1 5135

The exciting current of a transformer is non sinusoidal. why?

2 11300

Why one can experience electrical Shock due to Voltage or Current?? or both voltage or current??

11 15210

Give the selection criteria of a 3 Phase transformer for industrial purposes ?

NDDB, TATA,

5 12268

what is the difference between between open delta and broken delta?

Reliance,

5 28696

can any one provide some material?

1 3577

what is the requirement of commutator in a universal motor?

3 5692

Which pump set is more suitable and economical for liftingwater from 300Mtr borewell? A. Compressor Pump B. Submersible Pump C. Jet Pumps D. 25HP Centrifugal Pump Q. from PSC Test 22-11-2008 Meter reader

8 24423

Why Neutral Earthing pits and body earthing is interconnected

Taj Group,

3 15512

Why Earth pits are inter connected

Airtel, Taj Group,

8 20874

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Un-Answered Questions { Electrical Engineering }

How 3 phase invertor works?

2071

what is the circutor?why we use it ?

2330

Why do we need interlocking in a HT metering or Ring main unit switchgear?

2024

hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

2132

what is the isolation transformer. what is the isolator?

2073

How vfd saving power.

2027

why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

2024

If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

1077

What is the type of earth fault protection used in battery? explain.

2312

what is transient enclosure vltage , very fast transients, very fast transient over voltages

2153

Can the output voltage of a rectifier be greater than the input AC voltage without the use of any voltage multiplier in the circuit??please provide the explanation too..

2114

How will be the single line diagram of series trip HT breaker? how it works?

2605

Can any body tell me about INNER SHUNT COMPOUND MOTOR diagram?

2118

What will happen if the voltage in my house drops from 220V to any lower voltage?

2199

WHAT IS START TO INDUCTION MOTER IN STAR TO DELTA OF >5HP ?

1875

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