Electrical Engineering Interview Questions
Questions Answers Views Company eMail

can we use ac ameter as dc ameter with ct

1 3443

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 5636

what is meant by transformer oil temparature

Vijaya Bank,

3 4294

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

TATA, Tata Communications, Telecommunications,

1 3561

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

C&S, NTPC,

4 6843

Fantio of tranformer

Tenon,

1647

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

1 3920

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 2695

why transformer rating comes in kva?

HNG, Tech Mahindra,

4 6507

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

KVF,

1948

exact definition of reactive power in power system

Sreetech,

2 4106

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

1 1979

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

1 3870

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 4868

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

1 3533


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Un-Answered Questions { Electrical Engineering }

How to apply 'c' license and also explain what is difference between 'c' and 'b'license.i am also working in one of the private company.i have finished my diploma in 2014 .i have already finished in ITI electrician course.....

1491


give me atleast four differences between circuit and network

1644


can we use engine degreaser for electrical motors?

1207


What is meant by rotor?

716


i have to install a HT panel, what components, I have to use in this and what will the diagram of that diagram,please tell me each and everything.

1273






WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

1396


What is meant by reactance voltage?

549


design a LV scheme for a 15 storied building?

1400


What is servo motor and what are different types of servo motor

1786


ASTM D 3455 - Standard Test Methods for Compatibility of Construction Material with Electrical Insulating Oil of Petroleum Origin has been used for Testing Transformer Oils with a product placed in it. Aged Control Oil has a Power Factor of 0.032% at 100°C. Aged Oil with a Test component has a Power Factor of 0.093% at 100°. Is this increase acceptable? If not why? How much increase is acceptable?

1430


What is a difference between indoor transformer and outdoor transformer of same rating

5104


WHAT IS LOAD CELL

1589


PLS MENTION QUESTIONS ASKED IN IOCL INTERVIEW FOR ELECTRICAL EGG??

1858


how to determine the inrush current of a transformer

2034


what is the meaning of neutral displacement ???

2176