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Electrical Engineering Interview Questions
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Is there any guideline say about display of earthing value near to earth pit

516

Why air circuit breaker off due to power failure?

464

Why wind turbines wheels rotate constantly

470

132/6.6πš”πšŸ πšπš›πšŠπš—πšœπšπš˜πš›πš–πšŽπš› πš—πšŽπšžπšπš›πšŠπš• πš‘πšŠπšœ πš˜πš—πšŽ πšŽπšŠπš›πšπš‘ πš™πš’πš πšπšŽπšπš’πšŒπšŠπšπšŽπš. 𝙸'𝚟𝚎 πšŠπš—πš˜πšπš‘πšŽπš› πšπš›πšŠπš—πšœπšπš˜πš›πš–πšŽπš› 𝚘𝚏 6.6πš”πšŸ/415𝚟 πšŒπšŠπš— 𝙸 πšŒπš˜πš—πš—πšŽπšŒπš πš—πšŽπšžπšπš›πšŠπš• 𝚝𝚘 πšœπšŠπš–πšŽ πšŽπšŠπš›πšπš‘ πš™πš’πš 𝚊𝚜 𝚘𝚏 13/6.πš”πšŸ πšπš›πšŠπš—πšœπšπš˜πš›πš–πšŽπš›?? π™Έπš π™½πš˜.. πšƒπš‘πšŽπš— πš πš‘πš’??

383

how to calculate diesel consumption of diesel generator by considering load and capacity of generator?

1 661

What is the difference between vector surge relay (78) and Pole slip relay (98G)

408

control wiring purpose,standards, ferrule code standard, interlock, schematic, symbol

1 595

What is the different between conventional MCC and intelligent MCC? Common controller or controller for each bucket

378

How much depth we will take in 33kv sub station and why.

343

Electronic circuit

393

What kind of socket shall be provided for window type air conditioner with cooling capacity upto 18000 BTU/hr

391

The inventer is a battery, but if lost current at home u will turn on the fan but the is AC and inventer battery is dc . Then how the fan was rotating. What device Or machine in fan converst the Dc power to Ac power

427

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f normally used in Canada is to be operated in Europe on 50 hz frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 556

How does frequency affect KVA rating of a transformer? If a 500 kva, 500 to 250 v, 60 hz t/f used in Canada is to be operated on 50 hz in Europe frequency then how will its KVA rating change? a-increase b-decrease c-remains same

1 641

What is the output of below program? #include int main() { int p,q; for(p=1,q=1;p<7;p++) { printf("%d%d__",p,q); } return 0; } Answers- 1. 17__27__37__47__57__67__ 2. 11__21__31__41__51__61__ 3. __11__21__31__41__51__61__ 4. Compilation error

1 670


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Un-Answered Questions { Electrical Engineering }

How to check the cable fault / hv test of transformer cable.

1196


What is mean 2XWY

1689


Why the unit sizes of hydro generating machines are not standardized as in case of thermal powerplants?

437


WHY L-G FAULT IS MORE SEVERE IN TERMS OF RRRV?

2409


What is a advantage of Self Reset Lockout ? On Fault breaker get trip & fault no longer exist then self reset lockout how inform us?

1122






What happens if we run alternator on under frequency?Β 

1442


CAN WE CALCULATE THE NEGATIVE SEQUENCE AND ZERO SEQUENCE REACTANCE OF A GENERATOR USING ONLY ITS RATED VOLTAGE, KW, PF AND SYNCHRONOUS REACTANCE??? IF YES, THEN HOW??

4760


one conductor length is L.and i am strech uniformly this conductor and made length is 2L.so resistance of this strech conductor is R=4R..but i want to know about area of stech conductor hows it become a/2..

1511


I have 4 DG set with 1500KVA rating. system breakers are 11KV & alternator are 415 Volts. Between alternator & breaker one stepup transformer used. i want to Know what is max. resistance for body earthing & 415 & 11KV V Neuteal earthing. my fault current is 14 times for 2 sec.

1653


I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

1058


What are the ratings of VCB, MCB, MCCB, SF6, ACB, and OCB?

900


HOW can i REuse the fused MLL LAMPS & GLS LAMPS at our factory

1243


State the other types of Air Conditioners?

1323


why we have to particulary use ACB for below ratings,even available of MCB,MCCB with that range ?

2274


Define corner frequency?

501