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Electrical Engineering Interview Questions

whose the first invented AC voltage or DCvoltage

4886

What is the work of ACCP in LT panel?

23041

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

1331

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,

1536

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.

4214

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

1380

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

1646

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

5062

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

1368

what is percentage impedance of transformer? explain its significance

ABC, Bosch,

15788

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

1448

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?

2734

what is meant by tranformer impedance?

1977

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?

1718

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

5827

Un-Answered Questions { Electrical Engineering }

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?

3939

What is lifting power for 1 wb/m2 and 1 A magnet?

1520

HI SIR, AM PREPARING FOR RRB FOR SECTION ENGINEER POST. PLZ SEND ME THE PREVIOUS QUESTION PAPERS AND HELP ME. I HAVE NO ENOUGH TIME MY EXAM DATE IS 22ND JUNE.... MY EMAIL ID IS nalla.amarnath@gmail.com

1333

how can i get an electrical c-certificate?

1629

What does ampere turns shows?

507

Why is ignitor used in sodium vapour lamp

2661

Give details on how you intend to handle a challenging position you are posted to manage unexpectedly as a company staff?

2684

what is mean by Digital Logic Meter (DLM)

1663

differnce between single acting and double acting solenoid valves

1222

What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?

1568

what are the principles of a booster converter?

1364

BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

1693

What is an order of a system.

542

If not into production, how far did you follow the design and why did not you see it into production?

1543

defination of controlled shunt reactor

1628