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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why semicondoctor use in HT cable?

1 4353

why single core HT cable need only one side earthing?

2 8880

give some advantages and disadvantages of combiniing the session, presentation, and application layer in the osi model into one single application layer in the internet model

2711

why Current is lead 90 degree and voltage is lag 90 degree in a capacitor.? why Current is lag 90 degree and voltage is lead 90 degree in an inductor.?

2279

What happen if we give resistance to the armatuure of a dc motor?a

1 3546

break down of electricity is more in summer or in winter ? give reason

4 6697

Why do we will ground the positive terminal in electrostatic precipitator

JSW,

1 2823

Why the substation measure in KV but not in the power ratings of transformer.

4 6919

What is the pro & con of having 11kv & 33kv incoming, and what is the adv & disadv. of converting from 11kv to 33kv.

2827

in 220 kv substation,what is the mean of avr voltage reading? means at oltc temp. 36 the avr voltage was 109v.so what the mean of 109v

1 2713

difference bewteen reverse current and alternating current

ABB,

2240

if transformer core is made of copper instead of steel which losses will increase..please explain

Bhel,

5 17080

Is there any relevant technique to produce power from light and heat energy of the sun simultaneosly from same rays of light?

1881

Which element is highly conducting coppoer or gold?

3 5277

what is the effect of earth on capacitance in 3-phase and 1- phase transmission line?

2370

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Un-Answered Questions { Electrical Engineering }

lenz law application and define

2843

Suppose a 3 phase, 2 pole, 440V induction motor is driving a flywheel of 600mm diameter, 150kg mass. By using v-belt and pulley, the speed is increased to 4500 RPM. What will be the effect on motor current?

1414

define hysteresis loss, eddy current loss and windage loss

2000

what is deffrence between squirral cage and wound rotor in IM?

1976

Why 11kv to be generated in generation station

1673

i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

2270

How many Zones can be in Conventional type fire alarm system & how can we detect the fire in Conv. type FAS?

1830

A motor running with lenze frequiency inverter stops if I REDUCE SPEED with 25% load.If I run it in High speed and medium speed running smoothly with full load.please help me to solve it.

1996

How one may guess the direction from which the distribution line is incoming if there is no pole plate on poles?

2184

how to read idmt curva

2294

Electromagnetic torque developed by the motor is compared to shaft torque. A less B same C depends on motor design D more

2040

what happens when series resonance occurs?

1853

what are the differant std sizes of cable trenches?

2063

State the formula for overall efficiency of thermal power station

3047

Operation of isolators.

1897

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