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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What is the difference between hot and cold loop testing?

1144

L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

1102

What is the effect of electric motor stuck in star configuration,

1282

how the aircraft outer body and inner body is separated ?

1068

how the inner and outer body is separated in aircrafts?

1101

Why we use d.c. meger in a.c. induction motor?

1 10505

What happens to a motor if it is connected in Delta connection

1059

75 kw motor take 45 amp in no load delta in star 10 amp but in load it will take 160 amp but IR velue of winding above 500 at 1kw ph to earth and ph to ph. what problem it should be?

3725

what is the range of maximum DOL and SDS can be use for pump and fan application

1113

What is the difference between DOL starter and star delta starter

1126

electrical knowelge

1169

What is resistance reading of earth copper rod with grid and without grid?

1144

A 230 v dc series motor is connected to 230 V ac supply, then

1 2190

What is various types of electrical formula?

1 2053

How many gap between finger contact in a.c.b. and v.cb.?

1287

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Un-Answered Questions { Electrical Engineering }

How is the resonant peak, resonant frequency, and bandwidth determined from nichols chart?

1080

How the circuit breaker is selected for Induction motor of 100 kW, 415 volt, 0.85 power factor, 0.95 efficiency ?

1609

How many types are using in 220kv/400 kv swith yard

2188

What is mean by hot and cold loop testing? What is the difference between them?

1125

need to make a report. Need to choose a 3phase induction motor. Load conditions motor will operate in : Maximum Load: 30 Kw Speed: 2950 rpm Ambient temp: 20 cent Supply voltage: 440V Frequency: 50Hz need to look for the safety factor when choosing the motor, went through catalouge found a few, but dont know how to choose the safety factor allowing an extra load something above 30 KW to avoid any harm.

1818

what is rating boiler

1992

what is servo motor & how does it work.

1946

give single line diagram of D.G distribution form alternator to main L.T panel?

7560

The size and construction of bushings in a transformer depend upon?

1772

ROC converges if poles and zeros lie inside a. Origion b. Z=1

2256

What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1952

1600 KVA ka transformer hi aghar lt side par 800A aur voltage 420 ho to HT side ki cable ki rating keya ho gi?

2036

What is reverse power relay?

1182

ult of expression 'document.FrmQF.myem

2078

how many safety really of DG sets.

2228

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