Electrical Engineering Interview Questions
Questions Answers Views Company eMail

how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

L&T,

776

what is the concept of directional power?

583

how to check a transformer insulation?

Kirloskar, Kirloskar Chillers,

3 3874




WHY WE GENERATE 3 PHASE POWER ONLY AND NOT 4 OR 5 OR 6 PHASE??? PLS REPLY.

7 4405

What is the difference between 11kv/110v & 33kv/110v ? If both 11 & 33KV give 110v then what is the diiference ?

1 11628

PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

1083

For fixed primary voltage how does secondary terminal voltage of a transformer change if the pf of inductive load is raised from 0.7 to 0.9 with load current remaining fixed ?

GATE,

1 1857

is there any current and voltage drop on liquid resistance starter water/soda tank ?

637




while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?

595

what is the speed of the darkness?

Wipro,

3 1959

what is the electrical?

787

working principle of oil startar

552

what is the difference between mho characteristics and quadrilateral chara in distance protection

Essar,

1 4500

WHAT IS THE DIFFERENCE BETWEEN NEUTRAL AND EARTHING

Adani, Raychem RPG, Adani Power,

1 3655

for a 400kv t/m line with 10 ampere current will corona occur?

NPCIL,

889


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Un-Answered Questions { Electrical Engineering }

what is the difference between general inverter and solor inverter clerly explain plz

585


explain the what is a drive ? 0 4 which type motor r use in the celling fan..... PCB plannet 2 13 If stator & rotor of a 3-phase induction motor have different no. of poles, will the motor run or not?? types of drives Why dc supply is used for closing and tripping coil of ht breakers. What happen if we use only ups ac supply only. ACC 1 41 how the 3phase induction motor is running in 2phase supply with help of capacitor? 1 33 what is the actual difference betwen constructional details and constructional features? 1 20 how does commutator convert a.c to d.c?

893


How relay coordination has to be done? what are the inputs are required for this? Please explain this with calculation method?

388


how electrical earthing maintenance done in industry?

153


Why do we avoid electrical conduits in floors at apartments?

603






What is EHT tariff or Power factor Tariff ????

991


A powerplant has 8 gensets operating in grid parallel mode. In one genset sometimes there is pf variation and kvar variation. The plant operates in pf mode. When this variation is observed the load is stable, voltage is also stable, freq and genset speed is also stable. How will you check the functioning of pf card. What shall be the ideal output vdc of the pfc, from there it is input to AVR?

918


why the projects getting loss?

564


How can we calculate cable size in Low voltage & high voltage

288


I HAVE BEEN SELECTED FOR APGENCO A.E(ELECTRICAL) 2008.HOW MUCH WEIGHTAGE FOR INTERVIEW AND WRITTEN TEST.HOW I HAVE TO PREPARE. PLEASE GIVE INFORMATION IF U KNOW.WHAT ABT G.D THIS TIME.CALL RATIO 1:2

1487


1hp= how much rpm

652


bus bar design conditions and sizing pls tell me quickly

602


what r the preventive maintenance of air compressor

744


How you give clearance to a spare feeder.

355


WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

642