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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

haw to calculate resistance of induction motar

1 3740

in an ac series circuit there are 30 bulbs are connected in a serial set.what will happen if one bulb is fused and we removed the bulb and reconnect with the remaining bulbs? (29 bulbs). will the brightness of other bulbs increase or not?

3 8117

how induction motor work as a generator?

2 4458

5MVA TRANSFORMER SUDDENLY FAIL WITH THE PRV TRIPPING AND LARGE AMOUNT OF OIL SPREAD OUT? SO IT CAME BACK WITH THE REPAIRING WITH REASON THAT IT FAILS BCOZ OF TRANSIENT EFFECT? SO PLZ EXPLAIN HOW DOES IT HAPPENED?

1 4280

why neutral busbar size is half of the phase busbar size in control panels

IBS,

1 12813

why resistive load has unity power factor,inductive load lagging and capacitive load leading power factor?

OEG,

3 7354

what is dol starter

1 4091

which is the gas used in tube light?

12 18437

Which motor runs on both ac and ac? a) dc series motor b) reluctance motor

2 5594

Why cables and busbar both needed in LT Panels?

2183

How to do fabrication , busbar and wiring cost for : 1. LT Panels 2. C& R Panel

1919

how do we know the LT or HT panel trip by some broblem which indication willshow

TATA,

2 5229

what is the difference between arc and spark

2 5236

how to decide the panel size like MDB ,SMDB PANEL SIZES

7374

Dear All kindly let me know that I know about the DG Rating for Example 150 KVA,Now how i will know that how much Ampher load it can offoard.

2 4729

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Un-Answered Questions { Electrical Engineering }

What's mean HVF & HAF in Vacuum Circuit Breaker?

5349

how to check three phase motor torque value?

2371

How line capacitance & line inductance varies with increase in height tower.

2332

whats the differece between Exd and Exe

4938

Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

1754

why ahould you show client/engineer activities clearly on the project plan

2780

what is difference between window type and wound type transformers?where we will use window type and wound type transformers?

2203

Which of the following alternatives will be cheaper (1) A 100 h.p AC, 3-phase motor (2) Four motors of 25 h.p each (3) Five motors of 20 h.p each (4) 10 motors of 10 h.p each explain

3030

What is a dc motor?

1172

DG SET BLOCK DIGRAM

2288

what is EIB lighting control system? what is the advantages of this system?

3901

HOW CAN I GET 5CORE HO7 CABLE SIZE IF I HAVE 1800A?

2043

Sir, My doubt on cable sizing calculation, Load:74 KW calculated cable 1 run 50mm2. Now client asking us to reduce cable size by increasing runs. Sir, My question now when my mind strikes with 2 options 1) Divide load 74/2 = 36 and calculate cable for 36+36 making it 2 runs or 2) Simply i can divide 50mm2 /2 ie. 2 runs of 25mm2 Please suggest me sir

1939

A system absorbs 100 k J of heat and the increase in its internal energy is 100 kJ; the work done is

1282

What is difference between slip rings and carbon burushes?

15103

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