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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

whose the first invented AC voltage or DCvoltage

4 6787

What is the work of ACCP in LT panel?

Juniper Networks,

5 30125

How many capacitors using in LT panel as per Govt rules?

Electrical Tech,

1972

if we going for high voltage usages what are the considering factors, why those factors are effected.... please give me an answer related motor factors like wnidnig, frame, temp etc

ABB,

1 2459

we done magnetic balance test for 33KV /440V transformer in our company , but the ratio out is confusing us Voltage applied in RY = 440 , at RB = 320 and YB = 60 RY 440 = ( RB + YB ) 380 only Please let me know what type of problem is it.

2 5386

Either the Armoured Earthing strip of HT 3 core cable have to pass through CB CT or not , why ???

2084

help me with the question that might be ask on the interview for technical position

Eskom,

2290

what is difference b/w CFL and Ordinary lamps? which one is useful for power saving?

5 7223

we can conformed the vector group of the transformer. How?

2073

what is percentage impedance of transformer? explain its significance

ABC, Bosch,

2 17874

what does vector group Dyn11 tell us? also tell me how will u differentiate between phase lead and phase lag thru this vector group

Bosch,

2081

FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

3403

what is meant by tranformer impedance?

Synergy,

2605

How do we calculate the resistance per metre of single core aluminium stranded cable 19*3.25mm sheathed in pvc,at 15 deg C temperature?

2403

WHY MOSTLY BATTERY VOLTAGE IS IN MULIPLE OF 2 LIKE 2V,4V,8V,16V,18V....

Exide,

2 7545

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Un-Answered Questions { Electrical Engineering }

what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

2036

In Generator How suction compression power and exhaust works ?

1946

Pls explan the OLR setting in VCB at HT yard

2688

What are the types of the glands and difference between single and double compression type of cable Glands.

2085

How to decide DO set rating of Transformer?

1659

what is the formula of starting current of 3phase and 1 phase motor???

2107

i have 500 amp inductive load of motors ,,,pleas tell me how can i calculate for capacitor bank for improving my power factor to 99 .....calcullations for capacitor bank,,,,

1607

i have total 8 dg sets for synchronizing and 2 buscoupler,1 sectoin dg no 1,2,3,and 2 sectoin dg no 4,5,6,and last section dg no 7,8 ....if buscupler no 1 and 2 is off mode ..than dg no 1,2,3,will synchroniz of another dg sets?

1813

Explain what is electric traction?

1139

difference between Ac and Dc mcb ????

1626

For a stable system, where should the poles of a system be in a root loci plot?

1232

What is the resistance of the field winding of a d.c. Shunt generator kept low?

1112

Star Delta Diagram with full description

2391

advantages and disadvantages of inverse definite minimum time RELAY

1560

it is possible to rotate the DG engine dc starter with wrong polarity connections? why?

2255

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