Electrical Engineering Interview Questions
Questions Answers Views Company eMail

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

4 9320

What is the battery voltage limit

3 2399

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

L&T, Taj Group,

1 2916




why use generator Earthing/Graunding.

4 5630

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

HAL,

1068

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?????

1 3265

how to calculate AH of a battery?

Exide,

8 31842

define digital electronic

758




Can any one explain me about 2 phase motors ?

L&T,

2 3044

What is the difference between Isolator & Load Break Switch?

Infotech,

7 37200

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

650

what happenes if the core of the transformer saturates?

4 4917

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?

Engineering,

9 39533

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

Mepax, NEPCO,

1195

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

Mepax,

1 4397


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Un-Answered Questions { Electrical Engineering }

If we have to find the inductance of a dc shunt motor then by giving dc supply or ac supply and what is the reason for it. (this example is from "to determine the transfer function of a dc shunt motor ")

721


What are the special cables required for explosion proof wiring?

9261


What will happen if the armature resistance is in minimum position and the field resistance is in maximum position while starting the motor

164


If SFU is Switch Fuse Unit, What is the expansion for FSHF in Electrical Engineering?

1162


What is an Air COmpressor

959






In MEP Services what are parts of STP and what are there function?

938


what are the application of over current relay?

2809


how did the testing of protection relays done through current injection

832


What is the role of Dedicated earthing in UPS System?

1708


sent to a site and asked to explain how you would like a twenty seven flour building should be supplied with lighting and sockets plus a water boiler.

704


working of diesel generator ?

556


why is using sensor?what is differece between photoelectric and proxmitty?

703


If we want to change a contactor of faulty one what are the conditions want to fullfil

752


how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.

1030


difference bewteen reverse current and alternating current

833