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_mean_by_negative_dc_voltage? why we use -48v except +48v in DC power supply systems.

APEL, BSES,

2 7290

how ship earthed?

Marico,

5 18829

why three phase three wire system probably did'nt have neutral

Marico,

2 8058

what is the difference between synchronous generator & asynchronous generator

Reliance,

4 22822

what do you mean by leading power factor & lagging power factor

Suzlon,

13 70241

In power transformer YnD0 Vector Group is possible or not? if possible, what will be the vector diagram and what are the conditions?

2 9623

What is class 2 coordination ?

2 3957

what is difference between mccb,mcb,elcb,pccb

7 22848

how generator generates electricity?

Suzlon,

1 4743

what is the significance of tan delta testing?explain the theory?

7 38035

how to test generator protection rotor earth fault relay and locked rotor test?

1 14688

hoe to test voltage restrained overcurrent relay?

2 5846

What is the Difference Between MCCB & ACB & VCB

3 9919

Pls say , how we calculate lux / sq.ft, which formula used for calculation

5 18875

how calculate busbar size for rated amps, which formula use

Rites,

2 11855

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Un-Answered Questions { Electrical Engineering }

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1990

What are the characteristics of negative feedback?

1130

why capacitance effect is predominant in underground cable transmission and inductance effect is predominant in over head line transmission?

3735

When MICC cables used ?

2143

How LT megger works ?

2191

Is RTCC panel needs any control supply.

2124

What is resonant frequency?

1353

what reactive how to maintain

1896

how to calculate voltage drop and followed by cable calculation?is there avail in formula?

2125

what is the difference between b c d curves on mcb

1869

What is the resistance of the field winding of a d.c. Shunt generator kept low?

1159

What is maximum power transfer theorem?

1159

a governer in an Ic engine controls the

1245

l&t switch FN 63 handle position can we change

2623

why r we using shell transformer for low voltage

2077

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