Electrical Engineering Interview Questions

I want to design a heating coil of 80/20 nicrome for 3.5KW please give me the calculations choosing for physical dimensions assume coil voltage will be 110V AC assume necessary conditions

1107

Why resistance is not measure in running conditions of motor

2259

What is Percentage impedence of a transformer? why it is expressed at a percentage? what is the importance of percentage impedence in case of a transformer?

1370

How test for Ddo vector group test condition?

1882

what do you mean by power factor ? in new view

BDL,

3298

Why the pointer of earthing of 3 pin top is made thick and long compared to the phase and neutral pin ?

2855

What is mean 2XWY

Wilo,

1893

How to calculate Voltage regulation of 22 KV Over head Line.

1113

Actually why the transformers are rated in KVA.?

4594

How Can Be Size Of Transformer Corelate With Freqvence?

1760

Is a current transformer step up or step down ?

2595

what is PWM in IGBT and how it works for drive.?

BRG,

1152

In transmission line 11kv,33kv etc are rms values are peak or others??

5693

What is transformation ratio what it describes?

1112

How i can calculate the cable size for given load,there is any formula,for 3 phase and single phase

2441

Un-Answered Questions { Electrical Engineering }

What is the IS standard for MCCB to be use (As per capacity of AMP)& for ACB also.

1509

what is the relation between knowing of the distance between power transformer and the capacitor feeder in case of parallel operation

1391

what is cause of static electricity? I experience shock when i touch metal equipment in a room ,furher check shows earth leakage showing 80ma at the DB near to the 400 MCCB?

1390

Why does the rotor rotate?

1708

What is the unit of charge and current?

565

Merits & Demarits of Oil circuit & Air circuit breakers ?

1512

1374

What is negative sequence over voltage element?

1367

Explain the difference between verilog task and verilog function?

678

electromechanical relay type identification example : type=tjmh t-stants for j- m- h-

1869

How to size Air Circuit breaker (ACB)? What is the most important factors?

1698

What is minimum permicible value of leackage current for LT Panle when applying voltage up to 3 KV for 5 Minuits?

1621

hi friends this is a newcomer in your community of enthusiastic peoples. i am preparing for SSC (CPWD JUNIOE ENGG EXAM FOR ELECTRICAL) pls guide me on the same how to crack it? PLS LET ME KNOW IS ANYONE THERE WHO PASED IT? CAN I GET THE QUESTION PAPERS OF PREVIOUS EXAMINATIONS?

1689

I WANT BHEL PREVIOUS QUESTION

1741

how to calculate the formula of cable size if motor kw is given

1614