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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

compare between starting charactristics of synchronous motor with those of 3Q Squirrel cage induction motor

1742

What are all the conditions to protect generator & turbine in thermal power plant?

Power Grid,

1 4131

What is the need of generator relay panel

Newell,

2041

What is function of Diesel Generator?

Bhel,

2 4474

why dc motor runs slowly when dc supply is given?

L&T,

2 5375

What is difference between wire and cable ?

Havells,

3 7851

how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

Sandhar,

1925

if we have a power factor 0.99 and we add a capacitive bank with it then what happen?

University,

4 5340

15 kva dg set single phase takes 63amp( approximate) while same rating 15kva three phase takes 35amp approximate. why ? and what will be per phase current for 15 kva

TVI,

2 3879

What is slip in induction motor?

3 4268

Can we calculate the P.F if we know the only load on alternator .

Medha, Medha Servo,

1 5260

How we calculate the Multiplying Factor of Kwh meter for 3 phase alternator.

Cesco,

1847

What is the multiplying factor if line ct ratio is 1000/1 and meter ct ratio is -/5 ?

1 3090

how can we understand that where we have to use ac or dc coil for solenoid valve and why?what is the different between coil of ac and dc explain please.

TK Group,

1946

how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

TK Group,

1721

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Un-Answered Questions { Electrical Engineering }

What are the three types of compensators?

1057

what is Fan Control Cubicle

2427

How to test the Secure Elite 440 Multi function meter working condition.

2114

Can anybody just suggest about the scope of Electrical design with ETAP software?Just guide me?

3757

does a DG set has low fault level as compared to that of a transformer.If yes then why.

1941

what do you mean by every IC 74 first digit.why are you using this no.why not using another no.

1856

Explain in brief description about the operation of DG sets.

2396

When is lag lead compensator is required?

1081

Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

1977

how wecalculate breaking capcity of acb mcb mccb .explain with example

1870

ho can we calculate the conductor insulation value according to their ratings like voltage,current etc.how insulation value related with voltage,current and power of amachine

2044

While converting delta into star or star into delta ,the three values of resistances remains unchanged .Find out the value?Let In star R1=x;r2=x;R3=x On converting into delta,R12=x;R23=x;R31=x Find the value of x

1887

Vibromotor 252MV 1/4HP2P..what is mean by 252MV?

1912

Which contains in POLE ASSEMBLY of a 11KV Kirloskar-make SF6 (Model No-FP620A12)? Will u clarify with drawing?

2126

What is the application of Dyn1 and Dyn11 vector group of transformer?

2827

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