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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

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

GEB,

8 10246

WHY CFL can't made in shape of bulb.

5 9739

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

3 5971

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

3 10186

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

Bhel, Jindal,

22 43151

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

OPS, Power Grid,

5 46118

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

Reliance,

1 4953

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

6 9387

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 10774

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

Indo Asian,

16 106390

what is green house effect?

4 6587

what do u mean by knee point voltage?

TATA,

7 16586

what is negative,positive abd zero sequence current explain clearly

Jindal,

1 8931

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

17 32076

what is purpose of using reactor in substations.

Heavy Engineering Corporation Ltd HECL,

20 109202

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Un-Answered Questions { Electrical Engineering }

how can i change the rotation of the AC single phase induction motor and show me by diagram

1806

can you plz send l&t aptitude questions if available its urgent plz plz plz

2117

what is difference between cpp electrical system and refinery electrical system

2300

What is electrical grounding?

1171

If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.

6128

What is the criteria for selecting the voltage classes of an AC Induction Motor.The KW rating above/below which ht/lt selection is made may be provided in details.

1648

Please send 110 kv sb station full single line drawing(sld)

2472

What is the difference between Droop vs Isoch Control?

2436

How to check the LM324 Ic

8484

What is resolver and glass scale in CNC how they work?

2282

Please explain the following and how these are working with PLC unit 1.I/O Module 2.I/O Device 3.Adaptor Card 4.Ribbon Adaptor 5.RS 485-FC

1602

how to select size of hardware for linking aluminium busbar is it depend on area of busbar or current flowing through bus bar

2021

What is difference between Sample test and Routine test in safety standard?

1937

How can we decide cable size from HT panel to Transformer? Please give you reply with some examples.

2214

how to avoid Saturation in C.T?

2120

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