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 should be the ideal gauge of wire (In sq mm) for different loads in Ampere?

1394

write down the formula of cable size in RM if current is 50Amp.

1302

What are the Formula of computing Back up Time of 500kVA UPS with 4 Battery Banks, each bank composed of 43 pcs of Batteries 12V150Ah. How to compute the Back up Time of UPS? We have also 3X500kVA UPS running in Parallel same composition as I write above.

1301

my question is how to answer the question "you are from b.tech eee background and why do you want to go for banking

1296

what is feeder bay?

1543

What is difference between insulating medium and fault current interruption medium in a switching device.

1607

What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

Viva,

1518

what is the size of ht cable of 33kv ht line and transformers ratings are 1 Mva and 5mva.please send formula also.

1404

11 kv input, 66 kv input advantages

1352

What is CCM in Electrical ? where can we use this material?

1421

for what purpose the star point is done in ct

1368

can we install LT panel & HT panel in one room?

1 2743

can we install HT panel & LT panel side by side or how much clearance is required ?

1546

what is resver in electrical enginnering with answer

1680

surge tank, hrc fuse, earthing transformer, firm power objective type

1582

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Un-Answered Questions { Electrical Engineering }

Why generation voltage in thermal power plant is between 11kv to 33kv?

996

what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

2464

What is the dependency of stiffness on load angle??

1281

What is magneto on a gas generator. how it functions. its out put is d.c or a.c. how it can be checked for correct functioning

1954

what is gas turbine intercooling ?

2053

Following test should be conducted to find out relative polarity of transformenr terminals A no load test B back to back test C phasing out test D none of above

2178

What is the theoretical reason for the size of a zig zag grounding transformer to be 1.732 times less than that of a wye-delta grounding transformer used for the same application?

2233

What is the effect of interchanging core(made of steel) and winding(made of copper) material in case of transformer? Give proper explanation in regard to different losses in transformer.

1845

Why we do 2 types of earthing on transformer (ie:)body earthing & neutral earthing , what is function. I am going to install a oo kva transformer & 380 kva dg set what should the earthing value?

1114

Why let through energy not considered for ACB breaker while cable sizing?

2353

how to modify DOL control panel into Delta Y connection?

1907

State the formula for overall efficiency of thermal power station

2995

what will happen if there is a voltage leakage or current leakage in an electrical train

1963

How will polarity test of Dy5 Transformer ?

2221

Classify milling machines.

1088

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