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Electrical Engineering Interview Questions

Insulater disk using formula for 33/66/135 line h t line

3332

A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

14047

A cylindrical wire is compressed in length by 10%. The percentage decrease in the resistance will be?????

1206

what is meant by rotating magnetic filed

1068

If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?

4950

how we decide the require size is this for a known current at fuu load?

1018

Elaborate the term "rotating magnetic field"

3091

IN MY INDUSTRIES 125 HP MOTOR USED FOR THAT ONLOAD AMPS UP TO 280 SO CAN I USE ONE LOWER KVA DG SET WITH STEP UP TRANSFORMERS THAT MEANS WITH LOW POWER INPUT TO GET CONSTANT HIGH POWER OUTPUT EG:125KVA DG SET = 250 KVA STEP UP TRANSFORMERS

2093

if an induction motor is operated at unity power factor what will happen? will motor run or not? kindly describe a logical answer?

3305

I have a 600VA numeriv digital UPS for computer only. It holds for 15 minutes only. but i am try to using home CFL Light I cant using UPS 2 or 3 secound automatic off .but computer ok how to change this is in to ups ?

1725

how we select ac fuse rating of an power inverter???

986

What must be the minimum distance maintained between 2 Generators as per International standards?

1083

How to calculate the voltage drop of 4 Core 50 Sqmm SWA cable for a distance of 350 mtrs and what can be the maximum load connected to it?

4754

800A 22KV TP OCB. explain

2372

Is it recommended to apply H.pot test for new cables segments after terminations or joints, however, this cable has been tested before at the manufactor by the vendor ? or only we can apply megger tests ?

2178

Un-Answered Questions { Electrical Engineering }

What are the relays in ACB and VCB

1259

Hi Everyone ! My Name is Hakim ullah khan please i need formula of Cable Rating because i want to calculate by self without check any Table Chart... Thank you.....

818

how to calculate voltage drop and followed by cable calculation?is there avail in formula?

1151

what are the breakdown voltage rating of mini- curcuit'transfarmer!

1232

What are the electrical engineer roles and responsibilities in chemical plant?

722

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

1060

What is real time power factor control panel(RTPFC)?

3276

Can i use the B-curve MCB instead of C-curve MCB

1144

What is the effect of positive feedback on stability of the system?

218

hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.

1138

what is the maximum temperature rating of a thhn insulated conductor?

881

how can we determine size of a cable by knowing the kw or current rating of a load?how can we calculate the resistance box of a slip ring motor?

902

what is quality factor in series resonance circuit and calculate the factor of voltage magnification? how it happens?

1019

How to choose the vector group for the step up and step down transformers??? Tell me the which vector group is suitable for step up and step down transformers and whats the reason to choose and whats the benefits???

1399

can i connect wavetrap in 2 different phase in EHV line?

958