Electrical Engineering Interview Questions
Questions Answers Views Company eMail

i need to calulate the cable size when watts are mentaind wat z the formula

1 3415

hw the cable size can be calculated when we have watss, volts, pf, i need the forula

2 4246

why the colour of insultor stack , petticoat is brown. Is it has some technical reason.

1569

what is ideal insulator. what are its parameter. Is poecelain insulator comes under this category.

3 5029

why the name trunking bus PT

Siemens,

2484

How to convert 110 volt alternating current to 12 volt direct current

2 4674

whay we transmit power in 3phase no in 4 or 2 or 5......etc?

CCCL,

4 6365

Why electric sock occur to human or any lives ?

2 4041

Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 5097

what is the effect of back reactive power on the generator ?

MRF,

1732

A distribution transformer giving afrequency of 200HZ, where it is rated for 50HZ. when it will occure?

2 3928

why aggregate is placed all around substation ground.

1 1830

What is difference and reason b/w -48V BTS system and 24 V BTS system. Plzzzzzzzzz tel me.

1721

What will be in Mahagenco Trade Test Exam? I want to know the same.

MahaGenco,

3198

What is stray looses?

2 4208


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Un-Answered Questions { Electrical Engineering }

How LT megger works ?

1688


In TNC switch, is there any 1NO+1NC block ? and if we move over closing position, is ther any affect on trip position or vice versa?

1752


Testing report of Earthing of 3.15 MVa PTR.

2124


How to Calculate KA Rating of Main LT Panel

1166


How to synchronization will be done between two DGs ?

1307






WHAT IS IM (INDEX OF MOUNTING )IN MOTORS

1558


What is gross error?

685


how can calculate 1kva generator running time in 1 liter keroscene

2101


Which type of a.c motor is used in the fan (ceiling fan, exhaust fan, pedestal fan, bracket fan etc) which are find in the houses ?

588


I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

1920


what is charger supervision and control supervision?

1518


Practical condition in 400KV Sub station:- Breaker(open) , isolator(open), Earthing (close) at both end e.g A & B. Now Open A Stn Earthing than Open B stn Earthing (Which have a 50MVA reactor) , AND suddenly show R,Y,B phase 704KV,573KV,118KV respectively. Que is without closing of breaker how it is possible.???? My Whats app No:07621840498 for Further Discussion. Pls experts suggest.

1585


WHAT IS THE MEANING OG (li = 7 In)

1527


In siemens PLC, why do we want to move the data ?

1848


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

1205