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 on delay timer used for fully automatic star delta starter?

1646

Type of motor stater detail and working detail

1622

How capacitor improves pf

1666

What is use of starter and choke in tube light

1723

What are disadvantages of capacitor

1 4493

15hp motor wound by 0.9mm & 0.95mm magnet wire. at no load test it draw 4.2A current. Another motor with same condition draw 9.2A current. How can that occur? pls help

1530

Difference between Lugs and Thimbles

ABB,

15146

how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1538

How to find HT side and LT side(of a transformer),with the help of a voltmeter?

Odisha Power Generation Corporation OPGC,

1 6213

do we use neutral grounding for resistive balanced load? if we use what happen?

NFC,

1753

While miss missed name platform fo electric motor how to calculate simple fourmul,?

ABB, ABC,

1 3059

Neutral to earth and phase to earth voltage how much.

2 3784

we have one 75kw motor 380 volt 3ph amp134 please advise which size of cable required

2 3157

Why slip ring ind. motor power consumption is low compare to induction motor .same 90 kw motor used same load output

Altra Power,

1785

Hello every one I am currently working in IT side but i have an offer to work under 'A' license holder and he says i can get c license what is the use of c license and what shall i do after getting it basically i am an electrical graduate please help me shall i leave this it job and work in electrical maintenance will i have a good future i am confused Thank You in Advance

1 2294

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Un-Answered Questions { Electrical Engineering }

2. Modify your design in question 1.a so that the circuit works according to the following function table X Y F 0 0 Clear 0 1 No Change 1 0 Parallel Loading 1 1 Count 3. Design a circuit that detects the pattern 010 in a serial input X considering: 3.a Overlapping 3.b No overlapping

1896

WHAT IS MEANT BY INSULATION CLEARANCE IN VACCUM?

1932

What is power in wattage of 8.5 TR AC

1612

While testing a ZCT what parameters have to check or measure?

2345

how to calculate percentage impedence at 75 deg C at normal tap

2223

What is the reason behind current flow(20 A) in amain earth cable of an SMDB? Is cuurent flow(45A etc) through a neutral cable acceptable?

1941

What is the implications when 600 hp motor is started when the unit is running with Transformer of capacity 1500 KVA and DG set of 1000kva

2168

how to fit 3 HP crompton gear motor with conveyor with the use of staring delta starter or ordinary starter?

1969

by what factor the starting current is used when comparing star and delta connection for motor starting?

2037

Its possible to use 3core 2R of 240 sq.mm cable for 3phases & separely 50sq.mm 3core cable fully for Neutral for connection of PCC to MCC 3ph..4wire system?

2064

what is transient enclosure vltage , very fast transients, very fast transient over voltages

2106

What is dynamo function in DG sets and draw block diagram?

1997

How many types of interlocking use in screw type air compressor,make-Kaser(BSD MODEL)?

2061

which types of relay used in acb and vcb?

2692

What is the difference between grid and off- grid system??

1910

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