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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why starting current is high and resistance is almost 0 during the starting of motor dc motor...?

1734

Why winding temperature ct placed in B-Phase of the transformers??

3 4169

on 22.03.2015 at 17:15hrs Y phase 66kV class Power Trf-2 Current transformer has flashed over and oil came out. The failed CT has been replaced on 24.03.2015 at 13:15hrs and the Trf has been charged in presence of RT Hassan after conducting the pre-commissioning tests. On the same day at 17:00hrs the commissioned CT has again flashed over and immediately the Trf has been isolated from power supply. It is confirmed the secondary is not opened and checked the earth integrity and is found ok. Here what would be the reason for the CT failure?

2 3242

why the name mho relay,despite the locus of circle is impedance?

KSEB,

1 3379

what is over frequency protection

1 5399

air condition capacity for masjad having 50feet in circal and 35 feet high

3 3672

hey guys help me out.....what are the industrial uses/functions of nozzles in industries

1588

Wat is meant by OLTC?

1 2648

When a capcitor is used on 440 v thenthis is kvar rating 25kvar .my question is that when we use this capcitor use 480 v &525 volt .how much kvar increase . Plz give my question ans. And give answer with formula .my mail id is rohitashsaini013@gmail.com

Neptune,

1 2564

The coulomb is a unit of:(a) Energy(b) Voltage(c) Power(d) Quantity of electricity

1 2416

A charge of 240 C is transferred in 2 minutes. The current flowing is:(a) 480A(b) 120A(c) 2A(d) 8A

2 9367

A resistance of 50 kΩ has a conductance of:(a) 20S(b) 0.02S(c) 0.02 mS(d) 20 kS

1 9878

Which of the following statements is incorrect?(a) 1N = 1 kgm/s2(b) 1V = 1 J/C(c) 30mA = 0.03A(d) 1 J = 1N/m

1 4795

The power dissipated by a resistor of 10ohm when a current of 2A passes through it is:(a) 0.4W(b) 20W(c) 40W(d) 200W

2 6119

A mass of 1200g is accelerated at 200 cm/s2by a force. The value of the force required is:(a) 2.4N(b) 2400N(c) 240 kN(d) 0.24N

2974

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Un-Answered Questions { Electrical Engineering }

draw singleline diagram of star to delta and dol starters

2257

I have c license but I don't know eligibility of Max Kilo Volts under the electrical licensing board.

1719

explain different losses in a transformer.

1133

How many methods use the load flow solution?

1345

what is thermal resistance of PVC Cable.

1805

WHAT IS SUBSTATION & ACCORDING TO VOLTAGE HT,EHT SUBSTATION EXPLAIN IT

3169

describe the constructional features of an auto transformer and its principle operation

2358

how to select diiferent power transformers of same capacity on no load loss and full load loss by economical point of view.?

1971

explain the functions of main isolation switches

1680

how to select overload-relay for perticular motor 1.for D.O.L. starter 2. for Star-delta starter ????

2823

what is Insulation monitoring device. where it is used? (in switchgear room or control panel or in field equipment)

2158

WHY MOSTLY Rph IS USED FOR CONTROL CIRCUITS AUX. SUPPLY ?

2503

What is different between Circuit breaker and Isolater?

1811

For R-L or R-C ckt,time constant formula is L/R and RC respectively and its unit is in sec.Pls tell me the derivation

3284

how to design the heater in temperature control unit to heat 50KL of water?

1927

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