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 grables are put in substation?

1 4107

Explain the advantages of the wheatstone bridge method of measuring resistance?

7 54584

In what way does the variable ratio-arm improve the usefulness of the wheatstone bridge?

1 5813

Explain why inductance of the iron cored coil changes with current?

2 6507

Derive the inductance of a coil in terms of its physical factors.

1 4534

Let me know that how i calculate the alternator sub tranciant reactance and tranciant reactance.

2590

assume we are put both df/dt and vector surge relay in same bus the df/dt relay setting is +5 hz an -5HZ. we want operat the vector surge relay before the df/dt how i calculate the setting of the vector surge relay.

1 6611

1.what is the contact resistace of CB ? 2.radioactivity should be mesured with---------?

Power Grid,

3 6842

Why is making current of CB always greater than CB breaking burrent?.

JP Group,

6 26791

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2039

what is mean by PIR in circuitbreaker and give me detail of that?

3472

what is STUB protection in tranmission system and switch yard area?

KSEB, Power Grid,

9 74653

how does the power is travelled in conductor

2 4626

Is there any specialised book to refer about fault level calculation both in MV and LV side??

2033

electrical machines

3 17304

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Un-Answered Questions { Electrical Engineering }

In 90 kva alternator that produce the output voltage is 115(p-n),200(p-p) at 1500 rpms means what ampere it produced ?

1993

How is the connection of the tap changer on the HV side been made?

1918

Can I use distributon class/transmission class Lightning arresots for protecting the building? If not why please explain?

1898

how open delta PT works & what is its construction?

2202

in control scheme dc logic wiring commonly using negative loop,what is the reason?if we use positive looping what will happen?

2290

how we explain parallel paths armature winding?

1900

What are the advantages and disadvantages of open loop control system?

1060

what happens when series resonance occurs?

1800

what is ratio of copper wire size and current ?

1786

How to prepare electrical preventive maintenance plan & shedule of machine tools in manufacturing unit.

2125

Define phase cross over?

1086

can i connect wavetrap in 2 different phase in EHV line?

1795

Why do we need a separate control desk & PLC control panel in Boiler plant or coal handling plant? Can we provide cost effective Control desk cum PLC panel. Is there is an specific need for control desk.. kindly advice.

2326

What is the unit audit? if our Max demand is something and we found much more unit then how to improve our max demand?

1914

How to calculate Temp from Resister from PT100 equation,

1706

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