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 FULL FORM OF ONAN ( TYPE OF COLLING IN TRANSFORMER)

7 17953

what is the necessity of under ground cables ??

2083

WHY WE USE SIEMENS plC

3 7520

DIFFERENCE BETWEEN TRANSFORMER AND CURRENT TRANSFORMER?

7 10096

Why a transformer Noise during its running condition ?

NTPC,

8 14289

about transformer oil material & Test name for the measurement of its dielectric strength & wht will u do if its dielectric strength goes low ?

NTPC,

2 6805

What is relation between transmission lines & Communication lines ?

NTPC,

2197

Which Machine u will prefer to use at a place where flammable gases are coming out & why ?

NTPC,

4 6876

how fault in an electric system is detected & hw protection of equipments is done ?

NTPC, RLY,

6 9561

Why we didn’t feel electric shock in an electric train ??

NTPC,

10 30003

i Have 1000kva 11/.4 kv voltemp make t/f Its a 2 year old. i wants to known how much iron losses & copper loses during no load condition.

2 4454

Can I use cable armour as a earth conductor? if not how many GI/CU wires I need to run along with cable?

1 4405

What is the general power factor & min. power rating of TV,LCD type TV, CRt type TV, Scanner, printer?

2064

How to know the back up time for a 5KVA UPS which is connected to 15 nos. of computers? Is there any formula for this? pls. tell me.

S V Sugar,

1 8465

Can neutral line also be use as a earthting for distribution transformer, or we need separate earthing pit forh the transformer?

1 5618

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Un-Answered Questions { Electrical Engineering }

Give some differences between open loop and closed loop?

1107

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

how much flux density of CRNO core

2993

what is the calculation involved to design the heater to heat 10KL of water in temperature control unit?

1930

can u give me a brief idea about power line carrier communication ??

1987

what will be happen if earth point is being used for as a neutral point for raw power , and same will be used for ups earthing

2077

Diagram on interconnectivity of 11kv transformer with RMU (i.e, one incoming and two outgoing or two incoming and one outgoing)

2726

importance of reactive power management

2028

Is it possible to connect a safety device in to parallel?

2154

Lt motor sfu flashing reasons?

1784

What are the special cables required for explosion proof wiring?

3576

what is the meaning of vcc

2514

what is smartµ grid technology?under coal gassification?

1965

what happend to DC shunt motor if its field winding insulation becomes slightly weak? will that motor can run on full load or not explain in detail. thanks

1643

how to calculate short circuit current for the busbar

1506

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