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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1671

can a 150 kva 3 phase 440v/230V delta-wye step down transformer can be use as step up transfoermer with connected loads at 440v side?

RD Square,

1735

Can a 150 kva 3 phase,440v/230v delta-wye connection stepdown transformer can be used in reverse as a step up tranformer ?

Meralco,

3 4500

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

Mayur,

1622

Cb closed condition if there is a tcs fail whether cb will trip or not

AADC,

1833

If MF is 30000, pt ratio is 110 kV/110 v then what is the ct ratio?

2 3419

what is the chemical reaction of solt and charcoal in earthing?

Shyam Group,

1 2672

Is it really necessary to have reactive power in transmission line to transfer the power from one place to other?

Power Grid,

3 4470

What is the mechanism of WTI

JBS,

1800

What is self exciting?

1699

what is destructive and non-destructive testing of welding

1682

what are the applications of TIG welding

1667

with help of neat sketch explain principle of TIG welding process

1955

briefly explain principle of resistance welding

1848

explain the mode of metal iranafer in Co,welding

1586


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is relation between transmission lines & Communication lines ?

2197


What is the working principle of CFL & T5 tube light & 40W tube light with electronic ballast?

3955


what is destructive and non-destructive testing of welding

1682


what is the role of energy meter in distribution system ?

1183


How Self works in DG set

2022


at meter room 50 hrc switch installed,but there are not get earthing proper,so what happen?and 11kv transformer out put going in to hrc main 400a three nog each? so earthing is require for all switch? (some customer made earthing at there home.)

1909


am commissioning the trafo without connecting the neutral therefore unbalance will occur what is the alternative solution for this?

1866


I need bhel electrical test pattern & paper

1852


An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

2063


What happen to the transformer if the OLTC frequently used for lower and raise occured 50times daily?

2050


What is the difference between the transmission line and distribution line?

1165


how can i improve the power factor in domestic (230v)

2064


Why we specify TNC switch with 1NO 1NC ,2NO 2NC ? how we get connection.?

1773


I am having a 42KW 3 phase electrical heating furnace, heating element is 80/20 nichrome material, my connections is made in such a way that 2 star connection compromising 2 coils per phase so totally 12 coils, shall if i use it unbalanced star condition (instead of 2 group of 3 phase or 1 group of 3 phase, connecting 4 phases of 5 phases) what will be the consequences and is it acceptable?

1680


How to determine stage of Automatic Power factor controlling Relay(Apfcr)?

2163