Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why red,yellow,green colours lamps are used in the traffic control?

Samtel,

2 5055

What type of bulb used in small size cross symbol boder and original flame type(Deepam)?

1 2708

Why heat produce in AC machine higher than DC machine?

2 4583

Wat is the best to use in a generator a 6.5kva or a 7 kw

4 10414

my name is venkat .i have good percentage in my academics(ssc 86, intermediate 83 b.tech 73) my question 1..after completion of my ssc i joined in bpc but i didnt got rank in emcet so i completed MPC in one year compartmentally ..so here what am expect question from this background?

1449

i am venkat i got gre 930(verbal 270 quanta 660) and my toefl score 105..here question is why u got less score in gre ? what i supposed to tell...any chance of rejection is there...my accadamics record is very good

1715

How does a digital electronic meter work??????

1599

how much test voltage should applied for tan delta test.

Electrical, TATA,

2 4649

What is 11 N1 and 12 N2 in single phase Transformer ?

1492

How short circuit MVA(Fault MVA) in a power system calculated for calculating number of earth plates ?

NA,

1800

While connecting the flood light plug on to the 415 V distribution panel,there was spark and the cable got burnt. Three ignitors of the flood light also burnt of. The lamps are of 400 W (total 6 lamps) connected through 1.5 mm2 cable. The plug was immediately removed from the circuit. There was a 30 mA RCD connected and a 250 A MCCB; however both did not trip. What could be the possible reasons for the circuit devices not to trip?Can someone assist please. Additional info if needed can be provided.

2 3536

What is the main difference b/t Earth leakage relay & Earth fault relay.I want protect my LT panel(Distribution Panels)which relay have to propose.......

1 3590

What is the difference between neutral and ground?

Cethar Limited, Torrent Power,

3 6616

How many types oil using in transformer ? How many letars using in transformer..?

TATA,

1536

what happens when dc generator coupled with cycle shaft.also explain what happens when its loaded

NTPC,

1630


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Un-Answered Questions { Electrical Engineering }

what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

1423


state basic meaning of 'INDUSTIAL AUTOMATION'?

1350


how you configure motorvision relay (L&T make)from DCS

4313


if you are in a software company,then why do you want to come in a core company like sail, ntpc(where lots of trouble like tension but you have a good life in a it company) ?

1432


how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

1841






Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?

703


Electrical 'C' license full abbreviation , and full form

1312


please send me last 5 year interview questions

1655


What is the minimum distance to be maintained in between HT panel and LT panel and Instrument panel as per IEC and NEC standards?

1225


how does directional relay work incase of ac ?

1006


sir pls tell me . our ct specifications are 120/5 ,2 core , 0.2 and 5p10 class , 30va and 30va buden. insted of 30 va i want use 15 va. can i use?

1049


how power is generated,and transmitted to our home..pls explain briefly in simple words.

1765


What happen if 200 KVAR capacitor connected to power continuesly?

1640


After taking shutdown of 11kv feeder, if you see 5kv by phasing stick in the cable side, is it possible to close earth switch in cable.

1897


How to test lightning Arrester?

390