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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Is corona effect occurs in Induction motor. pl. justify the answer.

KPS,

4 9004

Why consumers are charged based on Kwh basis why not on Kvah basis.

Unitech,

4 10119

One Township having 850 house and each house load is 2.2KW single phase & 5HP 3 Phase motors of 10 Nos .Who can calculate 11 KV transformer capacity .dilip_bhasker@yahoo.co.in

1 4335

What must the distance between two MV cables be when they are laid on tray?

2250

What should be the amps for a MV fuses for transformer 630kVA 20(10)/0.4 kV

2038

WHY IS HV WINDING OF A TRANSFRMER SECTIONALIZED???

3 6406

Explain Active power,reactive power,how its related to each other , & inductive ,capacitive.

1936

what happens when power factor leads or lags to electical or home appliances

2 6326

any one can explain the stages of a knee point which is taken during ct magnetising curve.

Tata Steel Limited,

1783

what is V=4.44FBN, THIS 4.44 ONLY U GOT the voltage in term sof 11, 22 etc this 4.44 u will get from form factor which has a value of 1.11

1 3451

sir, is there any ratio,this much of A.C volt is equal to D.C voltage

3 6344

what is die electric strnth of transformer ?

2187

1)we have 1000 cfm Blower,Dia-1Mtr,Velocity of air 94 m/s 2)We have Natural Air velocity 94m/s 3If i Put Wind Mill in natural air ,speed is 94m/s Then it will generate Assume 100kw 4)If i put same wind mill across the Blower,air speed is same 94m/s now the Question is Will it generate 100 kw?

2005

working principle of induction motor is similar to transformer. but what makes it to rotate? then why the transformer doesnt?

4 12299

the input mechanical power of a single alternator is increased,its RPM increased but in case of an alternator synchronised with grid its RPM does not increased with increase of input mechanical power. why?

Bhel,

3 8710

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Un-Answered Questions { Electrical Engineering }

Sate maximum power transfer theorem?

1115

while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

2856

although ckt breakers have taken the place of old fuse. But instead of it , these older ones are still used in the industries and homes ? why .... what are their advantages and disadvantages ? which one is leading and winning the race and competition ?

2030

how are reversing the direction of rotation of dc motor

1766

Is it advantages of having star-delta vfd than normal star vfd , if yes why?

2258

How to calculate the phase to phase clearness of HT /// LT bus bar?????

2080

diff.between servo motor and ac motor

2051

Why 3 phase induction motor getting supply in body if one of it's phase is cut

1737

What is ideal IR values for ground and neutral.

1758

i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula

2210

what is the value of combined earthing in general electrical circiut?

1902

what is the transmission loss for electrical supply? specifically a large shopping complex where the grid is half KM away, what will the % of transmission loss? is there any transmission loss for captive unit generation for above set? thanks

1979

how many types of motor can be used in washing machine

2108

. What is Electrical Life & Mechanical Life of Circuit Breaker? 2. What is Electrial Life & Mechanical Life of Magnetic Contactor? 3. What is RCD, RCCB & RCBO? 4. What is the Between defferance of RCD, RCCB & RCBO?

3347

how generator load test is conducted?what are the steps?

1596

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