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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

A 3 phase motor, 440 voltage, induction motor. If we take out rotor from motor and if we give supply 440 volt to stator then what happens?????

20 22936

difference b/w bus bar and tie line?if possible explain with eg:

2 8649

what is a relation of energy in electromagetic field

1 3714

To avoid arcing what we connect in earthing.

HAL,

4 9914

At present how many HVDC lines are there in india

HAL, Infosys, KSEB, Kuntham,

18 88651

How many no of flip-flops are required to get 16 bit counter

HAL,

10 26159

HOW DO YOU PROVE THE HIGH VOLTAGE CABLES OR BUSBAR IS DEAD EVEN AFTER IT IS DE ENERGISED

6 15003

what happen for input voltage output voltage input current output current and kva if we increase primery winding in transformer?

1 4163

How we find the size of cable if we know the current

Gemscab,

2 22778

depending on what we can choose the rate of mccb considering that we know the total load

2 6546

What is the RMS and DFT principle of analogue maesurments. Which way they are advangages. where which princples give optimum results.

ABB,

2629

WHAT ARE THE DFT AND RMS MEASURMENTS PRINCIPLE IN NUMERICAL TECHNOLOGY OF POWER SYSTEM ?? WHICH IS BETTER IN WHICH QUANTITY MEASURNMENT??

1 17138

what are the types of Distribution transformer vector group please explain

7 23406

What is the acessaries distribution transformer ?

Bhel,

11 18400

why causes the burnt of AC Electrical Motor ?

9 38677

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Un-Answered Questions { Electrical Engineering }

If one tertiary phase i.e. R,Y or B is earthed of a loaded type tertiary delta connected (Without load)of a power auto transformer, what is its advantage/disadvantage?

2040

what does a string of resistors in a series will do?

1184

what can be the causes of capacitor start motor having a higher current that its actual

1933

Why the efficiency of a three-phase induction is the motor is less than that of a three-phase transformer?

1102

a battery is having capacity 100AH and 25% charging .if a load taking 10A & connected 6 hour .what is the final condition of the battery.

1580

How To Convert Apparent Into Real Power Without Knowing Reactive Power?

1736

What is the effect on power factor, shown by a trivector meter; incase of reverse phase sequence. If the power factor of a system is lag what meter will show in case of reverse phase sequence connected to the meter. and What in case of lead.

2275

what is the difference between circular wdg & ractangular wdg?

2013

Application Comparison between 22KV (UE)and 33KV (E) system. Are we allowed to use 33KV (E) cable in lieu of 22KV (UE) cable. What are the technical disadvantages.

2321

how to calculate the battery AH

2722

what is the difference between directional & non directional earth fault with example please explain.

1812

WHY CBCT USE ONLY IN Y PHASE NOT OTHER PHASES

2061

why does rotor rotets?

2579

What are the types of instrument transformer?

1130

why the making current is more than then the breaking current and if its true then its about a controling circuit or breaker power contact points

2033

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