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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Apparent power is expressed as V * I(Conjugate). Why not in V * I ?

3916

What is meant by electrical speed?

1 4476

What is the difference between induction generator and synchronous generator?

3 12711

What is the difference between solid grounding and impedance grounding?

2122

Current chopping mainly occurs in air blast circuit breaker.why?

1 13589

For high voltage and low current Circuit Breaker preferred is vacuum circuit breaker.why?

1 15147

Salient pole alternator is more stable, why?

2717

What is difference between stable and steady?

1 8415

Is there any difference of regulation of transformer, alternator , transmission line, if yes, what is it?

1 5249

can i use 10 mfd + 6 mfd instead of 15 mfd capacitor in single phase motor as running capacitor

3 8208

How to calculate impedance volt in Transformer?

2091

what are transmission line parameters and transmission line constants?

1 3687

WHAT IS THE CURRENT CARRYING CAPACITY OF 2.5/3 CORE HI TUFF CABLE,WILL IT SAFLEY CARRY 8.6 AMPS OVER 120 METRES,CAN YOU ALSO ANSWER WITH FORMULA FOR WORKINGS OUT ,THANK YOU 3RDYR APPRENTICE.

3573

why phase & neutral is use in tv? why earthing not use ?

2 5850

why wave traps are placed only at y and r phase?

3 14894

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Un-Answered Questions { Electrical Engineering }

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1964

what types of cable used in underground coal mining?

1485

How you calculating the 30 Hp 3 phase AC motor of power what size of cable is used for this motor?

1667

How I can Compare 120v/60Hz versus 220v/50Hz ? Please tell me both advantage and disadvantage ......

2031

Define piezo-electric effect?

1133

WHERE NEUTRAL WIRE IS CONNECTED AT DOMESTIC TO TRANSMISSION LINE(SINGLE PHASE TO THREE PHASE)

1837

bitumar

2311

What do you mean by reach and reach the point of the relay?

1264

how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

2243

Why control of DC motor is simpler?

2440

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1901

wat is meant by PX class in ct?

2048

How does a battary stores charge in it? please explain in simple manner and in detail.thanks

1984

we have a 2.5hp Starite electric motor water pump,the elec motor burned out,we need to replace starting capacitor(old capacitor specs erased),what microfarad rating capacitor do we need? 110-125V

1872

How to do cable sizing calculation for 750 A Neutral Earthing resistor for 33kv. the 33kv cable going to swbd. is 630mm2 3 runs.

4774

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