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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

how much current take 16sq mm Cable

2 10001

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

Vatika,

2796

how to select electronic timer(Star-Delta) setting for diff. rating motors

Getrag Ford Transmissions,

1922

what is the working principle of soft-starter & how it diff. from VFD ?????????

L&T,

5 22700

what is the purpose of %impedance for transformer

3 9793

does the Trivector Meter of three phase automatically takes care of the low power factor and gives the reading accordigly or it does not take care of the Power factor while giving the readings please explain

1871

What effect of supplying stationary generator (800kVA) with 415V AC from 1500kVA transformer?

2 4537

what is meant by VFD ?where its useful ?

7 11026

What is the SCR system in drilling rig.

Weatherford,

2 15940

What will be the impact on motor performance if a LT motor is rewound with changed motor winding data as given below:- Original winding data: total 04 wires = 02 wires of 17 SWG + 02 wires of 16.5 SWG. Changed Winding data: total 03 wires of 15.5 SWG wire size Motor rating: 160KW, 740RPM, 415V, ID FAN application. Normal Running Current = 95% of FL Current.

NFL,

1988

why use only sf6 circuit breker in 400 kv sub station

BARC,

5 8378

What is differance between Slip ring motor and Squirrel cage Motor ?

2 6502

The metal-enclosed switchgear and controlgear is subdivided into three types: 1. metal-clad switchgear and controlgear; 2. compartmented switchgear and controlgear 3. cubicle switchgear and controlgear. What is the main differnence between them. State some example.

1928

What is Single Phasing fault???(not single-phase fault)

ABB,

6 17715

What is the difference between electric and electronic circuits?

11 27867

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Un-Answered Questions { Electrical Engineering }

What is non-minimum phase transfer function?

1250

2089

What is the different types of cable & current capacity of cable

1906

what is servo motor and how to work it.

1876

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

2109

Is better to supply the voltage for static exciter from the auxiliary power source or from the SG terminals? And why?

1893

Dyn1 transformer vector group testing how to do

1763

ow can i get certificate of competency as electrical supervisor and my diploma in electrical engineering from jalgaon.

2321

66kv under ground cable how to layaing in ground any special case two ckt r runing

1947

Define steady state error.

1050

What are the factors influence the choice of an electrc drive?

2040

why swityard is necessrry requirement in any bis power distributin systems?

2334

what is smartµ grid technology?under coal gassification?

1913

what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

2738

if a number of plc s are there then how many modbus to be used

1933

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