Electrical Engineering Interview Questions

Can the Neutral and Body Earthpits of a transformer conncted together by Earth strips under ground.

12823

What is the battery voltage limit

4002

How much load with stand the copper cable by sq mm apro..

4104

why use generator Earthing/Graunding.

7750

what is earthing.how we make it,describe briefly.

HAL,

1877

If one 10 Hp 3phase induction motor connected in 380volt 50Hz. and again its connected to 380volt 60Hz. howmuch currrent and power take on both time?????

4284

how to calculate AH of a battery?

46506

define digital electronic

1479

Can any one explain me about 2 phase motors ?

L&T,

4502

What is the difference between Isolator & Load Break Switch?

47595

does a DG set has low fault level as compared to that of a transformer.If yes then why.

1452

what happenes if the core of the transformer saturates?

6782

1.In two wattmeter method if one wattmeter shows Negative reading then wat is reason? 2.Wat is the reason for low voltage in houses? 3.Wat is meant by current and voltage? wat is difference between the two?

61169

what is the easiest method of short circuit current calculation ? pls. derive with a mathematical example in real life application.

1881

how to calculate the no. of earth pits required for an electrical installation?

6152

Un-Answered Questions { Electrical Engineering }

Is it required to lay 2 runs of GI wires along with armoured cables from one power DB Machines of higher rating?

1482

what clearance required for 4.5 mva dry type transformer?

1534

Explain about Dubai electrical sysaem? Explain about Dubai drinking water system? Explain about Dubai Burj tallest building Electrical,Water.etc.. maintenance system?

1572

I need a formula to calculate the size of cable as per load but in the terms of length. Please Reply me as i search lot of sites but i did not get the answer.

1538

What do you mean by Stimulastion Test in Diesel Genarator / Why & when it's conducted ?

1142

What is the high series capacitance winding on high voltage power transformer ?

1519

BRIEFLY EXPLAIN THE STORAGE CLASSES AND THEIR TYPES IN C

1787

comparision between ACB and VCB

1843

What are the functions of temperature scanner in power transformer?

1559

what is self capacitance of inductor

1742

Define active filter?

528

What range of speed can you get with the field control method of speed control of d.c. Shunt motor?

591

what is kvarh? Please define it With calculation General motors ?

612

i have 90kw motor.so i choose connect cable .please what is parameter checked so please give to formula

1666

what is p.s impedance measurement test in earthing transformer?

1767