Electrical Engineering Interview Questions

Which type of starter to used which type o motor

1329

Dear sir, please tell me how many day use CTPT transformer

2132

What is the kva?

2854

Why NGR is provided in sub station?

MMS,

3458

why moisture formation found in XLPE Armoured cable outer sheath

1322

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

1202

transmission line losses

1863

Why R ph of Hv and Lv is shorted or joined together while taking vector group?

IOCL,

2205

working principal of online ups

1288

Why line VTG = √3 phase VTG in star? How?

1167

Why Generator KVA not in KW ?

3875

what is power factor ? how we can calculate the low power factor and amount of capacitor for improve that low factor ?

AB, JLL,

1073

after applying C-License in how many days we get it?

1929

750kva 11/415kv transformer having percentage impedence is5.64%. 11KV HV whose current 39.37A and 415V LV whose current 1043.43A.resistance is 2.5ohm. find no load loss and full load loss?

2208

I have 30 kw motor load & i have selected 10 kvar capacitor bank for power factor improvement.my existing p.f is 0.85 & proposed p.f is 0.99 so ,is it right selection? 2 nd question how to connect c.bank whether in delta or star connection & how to decide it?

2156

Un-Answered Questions { Electrical Engineering }

HOW TO CALCULATE HV TEST VOLTAGE FOR ELECTRICAL EQPT.

1742

how can i reduce sparking without stepdowning the voltage

2067

What are the types of class b amplifier?

589

Saving in copper achieved by converting a 2 winding transformer in to an auto transformer is determined by A voltage transformation ratio B load on secondary C quality of core material D size of transformer core

2478

If we impress a dc voltage of 230 V on an unloaded 230 V, 50 Hz transformer it wi A give high secondary voltage B burn out C give secondary voltage as per K D none of these

1564

what is solkor relay and which condition it will act?

2844

If an electrical component has a positive temperature coefficient, how come such components have high power losses due to heat if current decreases when resistance increases? assuming power given by I^2*R whereby the Resistance is infinite.

615

hai...... tis is Hemanth. jst now completed electrical engineering... i wanna to apper for ap tranco exam... plzz send me the previous q's paper link......thanx in advance.

1571

What is dc current source? Differentiate between ideal and non ideal current sources?

794

132/66kv sub-station procation ?

1699

What are conduct on the testing in cf in ur site?

1179

Is phenomenon of resonance is harmfull fr the machine? if not or if yes please explain it?

1433

DIFFERENCE BETWEEN NORMAL TRAFO AND THRISTER TRAFO?

2017

What is the drawback of static coefficients?

853

what is the ckt diagram of a tubelight and is it the simplest ckt of electrical engineering and also the component?

1823