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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

can we use ac ameter as dc ameter with ct

1 4142

How will you calculate the correct KWH value if your CT is 600/5 and your KWH meter is rated for 100/5

L&T,

1 6398

what is meant by transformer oil temparature

Vijaya Bank,

3 5494

Why don't connect earth wire to elcb?if earth fault occur,how will detect it

TATA, Tata Communications, Telecommunications,

1 4561

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

C&S, NTPC,

4 8400

Fantio of tranformer

Tenon,

2163

What is the basic difference between directional and non directional over current protection?

1 4725

In an electrical power supply,why if neutral phase of a 3phase supply fail over current occur but if it's single phase supply neutral phase fail low current occur?

1 3461

why transformer rating comes in kva?

HNG, Tech Mahindra,

4 8029

I have 440v power coming to facility,( not being used ) can I buy large generator, (gas) to sell power back to electrical co.

KVF,

2415

exact definition of reactive power in power system

Sreetech,

2 5135

why conductors of low tensile strength 1)produce greater sag and 2)can not be used for larger spans

1 2795

What is multiplying factor of meter if the meter ctr and ptr is open type?

1 4924

We order Dyn 5 distribution transformer to a company. What arrives is Dyn 11. Is it ok to use this transformer. It will be installed alone.

G&S Construction,

3 6136

in transformer input is d.c signal which type of emf is induced

1 4300

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Un-Answered Questions { Electrical Engineering }

Give me the calculation steps to design an electromagnet to be work in 230V 50 Hz AC Supply. Also give force that is created by that electromagnet when it gets energized.

2179

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

1963

What is the necessary and sufficient condition for stability.

1096

what is the calculation method to design core and winding of a 200kva 3phase distribution transformer?

2355

How to megger test 11 kV cable and the acceptance IR value

2929

Which test will be more severe for VCB?

2613

What is the effect of positive feedback on stability of the system?

1598

Mention how NPN and PNP transistor works?

1234

Actuality I have at home electrical panel with 220v 50hz, and I want to converter from there to 110v 60hz, to wiring on the half of my house. Also I like to keep another half of my house with the original 220v 50hz. What is the best and safety way to do?

1777

why do we measure VIBRATION in -24vdc and why we adjust gap voltage -9vdc to 10-vdc? i am trying to get this information since 5 years, yet i haven't get reliable answer, i hope i can get from you.

1813

what is mean by Digital Logic Meter (DLM)

2332

What is a feedback in control system?

1170

How generating electric power export to grid from the generating station ?

1827

electrical

2265

how we explain parallel paths armature winding?

1902

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