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...?

1736

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

3 4178

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 3249

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

KSEB,

1 3383

what is over frequency protection

1 5403

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

3 3684

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

1593

Wat is meant by OLTC?

1 2656

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 2573

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

1 2430

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

2 9375

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

1 9884

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 4804

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 6124

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

2977

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Un-Answered Questions { Electrical Engineering }

what is the difference between 2 way and 4 pole selector switch???

2453

A 230V dc shunt wound motor has an armature resistance of 0,15Ω.When operating on no load at 650 rev/min the armature current is 6A . The motor takes a full load current of 85A. Calculate the full load speed if the field flux is (i) maintained constant (ii)reduced by 0,03

2017

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

3979

What is the method of estamating of cable, CB,MCB ?

2180

WHTA IS LIMT OF LEAKGE CURRENT OF 11 KV 1 CORE 1000SQ.MM. XLPE CABLE.LOAD ON CABLE IS AROUND 600AMP .LENGTH 500 MTRS.

2149

How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?

2302

Refernce currents are to be generated using refernce cueernts how can this be done

2271

What is the unit of charge and current?

1166

what kind of technical test that i need to learn because i have an interview tomorrow.. please someone help me..

2042

How to calculate pitch, gauge of winding wire, and No. of turns for 30HP, 3 phase, 4 poles 50Hz, 380V induction motors

1946

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?

3728

What is meant by stator? What is meant by rotor?

1124

How can I known multiplying factor .without multiplying table

1800

can some one clearly explain why -48 volt DC use in telecom site????

1697

how to calculate the fault in substation

2462

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