Electrical Engineering Interview Questions

While testing LA mast,What are the parameter limits ?

TATA,

1496

what is the difference between PLC and embedded system

22546

why near the transformers, the Jelly(small white colored rocks)are poured.and what are conditions for that?

4970

Is it weather conditions make any problems to the electrical equipments and if yes means is it any precautions needed?

2390

what is mean by PID & Principal of working

13584

WHAT IS THE FUNCTION OF RCCB

4945

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

4558

If one lamp connect between two phases it will glow or not?

24642

WHAT WILL HAPPEN IF INPUT SUPPLY OF RCBO IS CONNECTED TO OUTPUT SIDE

5047

what are the ratings of sockets?

L&T,

14201

what is the difference between inductive load and capacitive load?give me some examples in general

16407

what is load vs Torque curve & why it is used?

1637

1.what is the difference between ct and cvt? 2.what is the difference between pt and cvt? 3.what is the difference between relays and circuit breakers?

2341

What is the Difference Between MCCB & ACB & VCB

ABB,

7973

What is the Difference Between choke & ballast

24847

Un-Answered Questions { Electrical Engineering }

what is sevice settings for mccb?How can be it setted?

1530

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

1290

describe the fully control circuit diagram of ac drives

1402

I am getting above 60 V as open delta voltage against single phase unit ICT at tertiary delta formed and ICT getting trippped on NDR. ICT tested and found in order. PTs provided on tertiary are tested and in order. what may be the reason?

1460

any application of back emf

1678

what are the industrail measures to over ferranti effect? how would the ferranti effect the power system if those remedial mearsure arent taken? how often does this effect occurs in real power system?

1714

Why lose 1 phase voltage in 33kv to 415v stepdown transformer

1376

What is nyquist contour?

795

What is mean by Sensitive Earth fault & what are the effects

3826

What is thresh hold value of current?

1646

What is the difference between PS & metering CT (5p20,0.5 etc.)? Why in PS class CT only Vk is given ? Is PS class CT is more accurate than metering CT?

728

block diagram of 2 ups system connected in hot stand by mode?

7531

What are the advantages of speed control using thyristor?

691

Write the force balance equation of ideal dashpot element.

886

how to determine ct ratio in ht vcb?

1390