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 red,yellow,green colours lamps are used in the traffic control?

Samtel,

2 6234

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 3395

Why heat produce in AC machine higher than DC machine?

2 5657

Wat is the best to use in a generator a 6.5kva or a 7 kw

4 11866

my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1922

i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

2149

How does a digital electronic meter work??????

2060

how much test voltage should applied for tan delta test.

Electrical, TATA,

2 5719

What is 11 N1 and 12 N2 in single phase Transformer ?

1934

How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?

NA,

2305

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 4664

What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

1 4325

What is the difference between neutral and ground?

Cethar Limited, Torrent Power,

3 8018

How many types oil using in transformer ? How many letars using in transformer..?

TATA,

2109

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

NTPC,

2131

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Un-Answered Questions { Electrical Engineering }

In a single how much maximum current and watts using

2162

3- What is the target from Zero Impedance, Single Phase Imp., S/C Imp. and magnetic balance tests?

1864

How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

2110

How to calculate energy stored in an inductance?

1147

In control room of our one plant there is a continuously the incoming power goes to PC is vary,means in stabilizer it continuously indicate from high input to low and low input to high. what is the reason and its solution.

1974

i need the curve duty cycle and amper for (150 kva @50% dyty cycle) transformer turn ratio :19 and vin 400

2134

What is voltage divider rule?

1186

HOW TO TEST A LIGHTENING ARREST ER ?

2200

WHAT IS THE MEANING OG (li = 7 In)

2195

what is meant by LCR meter? where its useful ?

2052

What are dependent sources?

1181

what is sevice settings for mccb?How can be it setted?

1991

What is the control action?

1147

How to test the vector group of a Yd11 transformer? what are the relations to be checked between various vectors to confirm this vector group?

4471

what is the clear formula to calculate cable size for a load

1964

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