Electrical Engineering Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how i calculate the size in mm of the LT 4 core cable for 100 HP inductive motor pump

1 1868

If u take a kWh reading in 11 kV HT and 440 LV side at same time in yesterday today , then why LT consumed units 3-4℅ high as compared to HT units

Brigade,

1 2168

why ac wave is sinusoidal not square or triangular wave what will be reason

ACPL,

1 2013

what is reason in mv breaker the control supply voltage is dc not ac?

1 2365

what types of cable used in underground coal mining?

1336

condition Autotrip facia come on control panel of electrical transmission line?

Getco,

1400

How to calculate capacitor bank size at a load 800kVA.

1441

what are the reasons of CT circuit faulty in busbar protection scheme?

Getco,

1304

Generator,motor and alternator Working principal Please explain easily

1288

From past few months I am getting lagging pf even though sufficient capacitors used in circuit. Where is the problem pls answer

1262

What is the current carrying capacity of 35sq.mm flexible cable?

1315

What is the technical difference between On delay timer and a Star delta timer?

Roche,

1362

how electrical earthing maintenance done in industry?

L&T,

1379

dc supply given to dc generator winding.how is possible? my knowledge is saying the winding will burn. please reply.

1225

why we are not giving the zone 1 trip command to the master trip relay

1449

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Un-Answered Questions { Electrical Engineering }

ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

2785

Discuss the effect of sudden loading of an induction motor

1711

What will happen if we introduce negative feedback to a control system that uses a positive feedback?

938

how to calculate the mesh earth network resistance in such substation, is there any recommended resistance values with references , thanks!

2161

What is a surge supressor why its is used in synchronous generators

1838

how to select the mpcbs and contactor for 3 phase 30 hp star delta motors.for plc control.and tell me the calaculation for future use.

1800

What is the dc grounding system and what is diff between AC/DC grounding system?

1939

What is meant by Load Encroachment in OHL Feeder Protection?

3405

please send privious years question papers of jindal steel and power ltd.My e mail id is rajanikant.sngh@gmail.com

1932

i have faced a problem in ro plant grunfos make bm30type pump it is 22kw pump. We start this pump using siemens 3rw 4423-ibc44, 30kw softstarter but this soft starter will frequently failier so we planed to change dol starter. So pls tell anybudy its possible or not.

1802

I want definition for ABT Meter (Availability Based tariff) ?

1823

if grounding is notdone at regular intervals for long distance transmission, will the load connected at distribution end receive voltage during negativehalf cycle of the sine wave?

1861

Why is back emf used for a DC motor? Highlight its significance.

1007

i need to now what will be the cable size to the following load, transformer to distribution panel distance 110m, load 1000kw, voltage 400v, pf 0.85, permissible voltage drop 2.0%, overhead line, atmospheric temperature 35 degree c.

1450

What is meant by cold loop test in instrument

2428

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