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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

when we supply in primary side of transformer then the supply goes in secondary side?how it works?

4 6604

how to protect motor in dol starter having capacity of 30 hp.40 hp?

3255

what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

1991

howmuch current can carry the 2.5Sqmm copper cable?

42 106115

what is mutual induction principle?

6 42084

What is the requirement of grounding the neutral of single phase generators on load? If the neutral is not grounded, what will be the effect?

HAL,

2161

What is the difference btwn grounding and earthing?

HAL,

11 17413

Whats the principle of lightning? How protection against lightning is achieved? Types of protection? How to select the height of lightning spike? as per the area.

HAL,

4 11712

what is the differance of acb and mcb and mccb

MacAir, MDS,

12 36989

what is the function of a commutator in a dc generator?

College School Exams Tests, NTPC, TCS,

14 76831

how we are measuring the winding temperature of the transformer?

11 37037

prefer any good electrical engineering book.....it should be useful in the practical fied?

1 9608

How to test Power Transfomer vector group in the field?

Al-Yamama,

3 7308

how will u exactly calculate the unit consumption of the Air conditioners?Split/Window/

3 7757

what is Touch and Step voltages

Pinnacle,

1 4643

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Un-Answered Questions { Electrical Engineering }

what is the reactance,capacitance & impedence electrical armoured & unarmored Cables.

2262

how to find the capacitance value of the motor while running??

1978

what is metering cum synchronizing panel and how it is used?

4717

what is the thumb rule for determination resistance of resistor?

2371

what is meant by twilight switches 7 where its applicable ?

1990

What are the causes for the failures of sandwich type (Al) busducts?

1920

thyristor controlled APFC panel design parameter?

1837

What is meant by vector group

2634

What is meant by Im=30mA@Vk/2. How to know the kee point voltage for CT design

3522

im working in one private compeny in gujarat. i was complet diploma electric in 2010 from gujarat technical board. now i want electric supervisor licence in gujarat but i dont't know when i apply? plz give me address of the licence dippartment office in gujarat. gandhinagar

1916

How to select, design,size & calculate for 11 KV/33KV/66KV/132KV/220 KV/440 KV circuit breaker for HT side of transformer protection/HT distribution protection?

2813

in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

2172

how a.c. genarator control power factor when its conected to grid supply by incrising or decresing excitation voltage.

3446

What is process of anneling transformer core

2019

What is the difference between the transmission line and distribution line?

1215

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