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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

7 33830

please mention the minimum IR value for different voltage systems

6 5229

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

Reliance,

3 4109

What is battery Limit ?

NDDB,

4 21402

Why electrical heaters are not provided with overload relays in circuits

1 3546

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 3388

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

2 9082

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

11 9223

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

NDDB, TATA,

5 8742

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

Reliance,

5 22561

can any one provide some material?

1 2198

what is the requirement of commutator in a universal motor?

3 3246

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 19374

Why Neutral Earthing pits and body earthing is interconnected

Taj Group,

3 12308

Why Earth pits are inter connected

Airtel, Taj Group,

8 13742


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Un-Answered Questions { Electrical Engineering }

while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

1775


how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

1072


What happen when neutral point connected to core balance current transformer? (Neutral point of an alternator of a 180KVA DG. Neutral point connected to CBCT means enter to the CBCT)

1402


What Is HO factor in power selection

1063


what is the relative size of single and three phase?

912






What can you contribute to the progress of our Company as an employee if you are selected?

4313


If a shunt Dynamo has induced emf 100V and 0.4 ohm resistance and battery of accumulator of open circuit emf 110V and 0.5 Ohm resistance are in parallel what is common terminal potential difference?

2409


Difference between HRG and NGR. Are they both the same thing

2650


r we are using in gas turbine mark (5) frame (6) (made in india Bhel 1997) Ā

850


What are the different methodes for calculating the short circuit Current?

1043


what is the AC Plant and how can do the work with parts and picture tell us 150 Tr

1094


Two electric lamps 40 W, 220 V each are connected in series across 220 V. What is the power consumed by the connection?

524


what is th basic difference between a d latch time line and a d flip flop time line???

1044


- two pumps must work with them at the same time but if the first pump start the second pump  must delayed for some time to start  also , with motor rated power = 90 KW and rated voltage = 380 V and rated power factor = 0.85 lag please draw the power and control circuit for it and determine all circuit components parameters that you use it

1751


Explain how you intend to work under pressure to meet up with deadline target?

1495