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Electrical Engineering Interview Questions
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when a cunductor is being disconnected from live cct, still it showing charged, if its checked by line tester?

GEB,

8 7816

WHY CFL can't made in shape of bulb.

 5 7904

why three phase system is not preferred in aircrafts power cckts if yes than explain reasons?

 3 4839

wat is the role of reactive power in power generation?why we have maintain it.

 3 8976

wat is the importance of reactive power in power generation.....if it is zero means wat will happen to system........

Bhel, Jindal,

22 37214

what is difference between differential protection and distance protection and how we calculate the sloop?

OPS, Power Grid,

5 43584

what is slip resistance? how much its value in 110 kw motor? why voltage is varied in vvvf drive ?

Reliance,

1 4021

What type of protective system we uses in L.V. distribution panels?

 6 7589

Why P.f. of the system decreases when it is connectect across induction motor? & how to maintain the p.f. of system to unity.?

Reliance,

6 8794

What do you mean by S.F.U. unit? application of it.

Indo Asian,

16 100912

what is green house effect?

 4 5148

what do u mean by knee point voltage?

TATA,

7 14446

what is negative,positive abd zero sequence current explain clearly

Jindal,

1 8029

what happens when ac supply is given to D.C motor.

 17 27723

what is purpose of using reactor in substations.

Heavy Engineering Corporation Ltd HECL,

20 103389

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Un-Answered Questions { Electrical Engineering }

what kelvin's law ?

1599

what are the applications of TIG welding

1160

what is the best method of grounding in 30 MW generator?

1487

what is the criterion for selecting vector group of Transformers ? i mean how to decide vector group of Generator transformer, substation trasformer and transformer at consumer end

1759

What effect does a very low impedance have on the Voltage regulation? On the short-circuit current?

5819




Define damping ratio.

771

What is the difference between a verilog task and a verilog function?

655

how does the terminal voltage of transmission lines increase when a capacitor is connected???? This happens not only in transmission lines but also in all circuits. How??? When a capacitor is connected in a transmission line, capacitor also takes energy from the same supply. But how is it able to increase the terminal voltage??? Practically What sequence of events happen during increase in voltage???

1604

what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2126

Circuit diagram of tube light without starter using electrical choke

3636

How to know the following data of synchronous generator 1. D-Axis Unsaturated Reactance 2. D-Axis Unsaturated Transient Reactance 3. D-Axis Unsaturated Sub - Transient Reactance

1462

What is the formula to calculate a three phase alternator

1776

Explain cmrr?

681

in non technical way how can u define POWER FACTOR??

1365

wHAT IS CAPACITANCE LATCHING? hOW TO CALCULATE CAPACITANCE LATCHING? hOW TO SOLVE THE PROBLEM IF CAPACITANCE LATCHING APPLIED?

1534

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