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NTPC Interview Questions
Questions Answers Views Company eMail

What is the output of 25 kva 11/.4 kv transformer in kw ? Plz generalized it...

 3 7494

Why can not you store AC power in battery like DC power?

 1 4670

How to calculate the copper in HT motors if KW, RPM & Voltage is given

 2577

I know during Surge Impedance Loading maximum power is transferred through a transmission line and also Sending end voltage becomes equal to Receiving end voltage i.e Vs=Vr so my question is if both end voltages are equal then how current travels in such line hence how power is transmitted because flow of current needs Potential difference??

 3 4550

if one potential missing in energy meter , how much % slow the energy meter?

 1 4708

Factor of safety for steel should be based on its yield stress or its ultimate stress and factor of safety for concrete should be based on its ultimate stress or its yield stress?

 2 16213

What is the knee point voltage of CT-100/5,15VA,5P20 ?

 3 6072

why do mostly prefer to generate and distribute electricity in 3 phase..not in 4 phase or 5 phase.??

 5 7918

What's the differs between voltage & current & emf.

 1 3509

why the transformer has no starter

 2 8307

what is the significant for using two types of voltage(line voltage & phase voltage)

 1 2924

in a delta-star with neutral grounding on star side what will happen if one star limb  got opened at star point

 1 4133

How to calibrate radar lt type transmitter

 1 6448

if single phase is having 220v supply then why three phase is having 440v instead of 660v?

 4 7031

Why boiler chimney area  oxyden sensor fixing? 

 2038

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275

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3396

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519