Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Why Transistors are not used as switching devices?

15 19176

what is the difference between electrical & electronics

TCS, Satyam, Infosys, GDA Technologies, Banking, MBA, Snow White, Axon Constructions, Satyam Tech,

244 215826

All tape of electrical questions Answers tape of motor transformer e.o.t crane

Honeywell, Afcons, SIMS, Manlift,

1182




my field of interest is T&D. plz tell something about that.

TCS,

15 13646

2 Diesel Generators 900KVA connected to the bus bar for essential load as an alternative for power taken from 11/440V 3KVA Transformer supplying this bus bar. my question here is in the event of power failure on 11KV side can I feed the power to 11 KV bus by using the same transformer as reverse feed, what will be the inrush current???

Ashok Leyland,

3 8959

what is the difference b/w winding insulation class and winding temperature class?

NTPC, Bhel, NDPL,

6 12622

why, when birds sit on transmission lines or current wires doesn't get shock?

Infosys, College School Exams Tests,

36 33376

railway exam in asst loco pilot old test paper

RRB, TATA, Loco Pilot, Vimal, Indian Railways, Southern Railways,

25 27684




why earth hole size is biggest in plug point?

RRB,

13 19405

why earth hole size is biggest in plug point?

HCL, RRB, Al Qabas,

22 26238

what are the types of transformers

59 59265

hi friend i am going too attend for hpcl in this month please help me by sending written test question papers i am in the stream of E.E.E

HPCL,

757

What quedtion to ask a electrical maintenance technician?

Bhel, Royal Furnishers,

5 15975

capacitor is load free component but why ampare meter shows the current when the capacitor bank breaker close?

OPS,

4 4512

capacitor is load free component but why ampare meter shows current when capacitor bank breaker close?

Bhel, OPS,

5 9245


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Un-Answered Questions { Electrical Engineering }

Enlist four components of electrive drives.

615


I have made a 3 phase thyristor full bridge rectifier. But at the moment it is working only for the half bridge operation. Both the half bridges are on operation separately but when i put it into full bridge operation the oscilloscope output is zero. I rechecked that the pulses are correct for each thyristor. what could be the possible reason for this?

636


how to calculate magnetic force genrated by a coil ?

820


I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

555


What are diffrent type of road taxes?

698






Comparision of Air break circuit breaker, SF6 Circuit breaker and vacuum circuit breaker.

1110


in cvt,there are two windings,1a,1n and 2a,2n.in my one project i use only one winding i.e.1a,1n. the other winding is not in use, so i connect it in open delta and want to close it by ibsertibg thermal resistor. the output of cvt is 132kv/115/sqrt3. plesae tell me exact value of resistor, so i may close it to avoid the resonance phenomenin. send me answer on this email adress please. aetcon-po@aetcon.com

1001


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,,,,

358


What will be the diameter of pipe between conservation tank and transformer

586


why dimmerstate always connected in star connection? what will happen if it connected in delta?

748


what happen when power factor of 2 parallely operated transformer become equle?

851


dg earth connect only in the amf panel or not why

724


Hoe do calculate the Cable size for Amps rating ?

856


how the speed of the gets motor regulated. does it draw the same current on the all speed level.

676


What is a fuse? How does it work? What are materials used?

665