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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

How to design the no. of ceiling fans required in 5mtr X 10 mtr X 3 Mtr hight room?

2153

What is the de rating factor of cable? What is the importance of the de rating factor in cable selection?

2092

What is size 00, 01, 1 etc., in HRC fuse types?

Jaypee,

2381

What is the meaning of 40X8X2 busbar dimensions for carring load of 400 Amps

1999

What is the purpose of shunt trip in ACB function?

1 6475

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

Remi,

3952

Is there any Flood lighting system which produces more light (More power consumption 1000W,400W etc.,), white light and restart immediately after power restoration ?

1 3586

What is working principle of washing machine?

IBPA, Samsung,

9 91630

Can we use 3 phase energy meter for measureing power in 2 phase 440 V phase circuit?

2 5784

1)What are the proccedure of initial charge of 100AH lead Acid battery bank 2)whether discharge test is reqd ? if it is rqd why, how 3)what are the discharge critieria (volt/cell or sp.gravity/cell

1 3781

what is ignition?

1 3906

sir,i am swati. i am goin to gv jspl exam on 21st nov'10. iwant previous year question paper. plz help me out. my emailid is swatisinha.dav@gmail.com

1 3756

why the autotransformer burnt while stating the pumpmotor?, In starter and motor there was no abnormality.

4 14330

what condition there autotransformer will fail?

2 4703

Why insulation level follows this order? transformer < bus bar < circuit breaker & Isolator < transmission line.

2142

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Un-Answered Questions { Electrical Engineering }

what is meant by power and distribution transformer ?

1984

what is transient enclosure vltage , very fast transients, very fast transient over voltages

2150

what is the function of Moulded case circuit breaker, why it is called Moulded?

1549

Two bulbs of 100w and 40w respectively connected in series across a 230v supply which bulb will glow bright and why?

1052

In constant power region of 3-phase IM torque-speed characteristics, if frequency increases flux A does not alter B decreases C increases D none of above

2242

How out of step protection relay works?

2435

Which cable is use for rtcc control panel

1757

What is difference between slip rings and carbon burushes?

15099

what is the function of capacitor duty contactor in an capacitor panel???

4146

i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1969

There are a trformer and an induction machine. Those two have the same supply. For which device the load current will be maximum? And why?

1139

State the methods of improving power factor?

1146

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

1967

What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?

1923

how does high earth to neutral voltage affects electronic circuit?

1954

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