Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is the meaning of floating point earthing in battery backed systems ?

1470

For household Load of 11Kw supplying 5Nos. 1.5 ton Air conditioners + usual other load what shall be rating of Either ELCB Or ELMCB? Which of the circuit breaker will be a better choice?

2 3957

How to model "IF ELSE" statement in matlab simulink?

4 21734

How to model "to find the cube root of the given number" in Matlab Simulink ?

1 8804

CAN CU XLPE/PVC CABLE BE USED INPLACE OF LOW NOISE SCREENED CABLE? KINDLY GIVE REASONS

1406

CALCULATE THE TOTAL VOLTAGE DROP AND SELECT THE CABLE SIZE IN MM-SQARE FOR A PANEL-262KW AT 110 METER FROM THE SOURCE SUPPLY , SUPPLY VOLTAGE 240/415

DEWA, Growth,

2230

how we can to the synchronization in transformer. What are the conditions for that.

1 4018

60 watt bulb and 1500watt iron which device has more resistance & why

RMSI,

5 8415

After synchronization with grid how to maintain the power factor in lagging or in leading? if lead of lag what is the problem?

3 6042

After synchronization with grid what is the demand value QKVAR and how we will maintain that?

1787

what role does a star point or neutral point play in a star connected system?

4 5862

what will happen if neutal in AC ckt will get open

3 4927

What is DTR erection?

3572

What are the RGGVY, APDRP, RE?

3 9328

What are the Return ( Monthly / quarterly/ Annual submitted to Electical Inspector for an establishment (Factory in Maharashtra-- Small scale category having seperate HT line of 22KV ) as per Maharashtra Electricity Act

1570


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Un-Answered Questions { Electrical Engineering }

we use capister for power factor. when we use capaciter in dg circuit  than defect dg. can we use capaciter bank for dg circuit

1417


How does "OUT OF STEP" relay ,for Synchronous motor protection, work?

3883


How to identify the start and end of 3phase 12 lead motor if U1, U2, etc numberings are lost or erased.

1705


how to calculate the power factor when instantaneous voltage and current has harmonics in it ?

1397


Define settling time.

708






Define Electrical Insulation and examples of Solid,Liquid and Gaseous insulating materials?

1306


Explain the operation principle, advantages and disadvantages of the following converters: a) A 12 pulse converter b) A Switch-mode inverter c) A thyristor inverter

1487


We have 250 KW x 2 motors, which are load from 25% to 100% varying load in every minute , so how can we compansate the power factor. pl give your opinions on the above subject.

1411


On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

2111


hi frnds...pls send me aptransco previous papers .....pls..pls,,,(madhar.rocking@gmail.com)and suggest me some websites

1692


What is the function of capacitor in electrical circuits?

603


why we use Test Terminal Block in 11 KV and 33 KV electrical panels.

946


sir, I am from EEE branch.On feb 17 iam going to write an Exam for hindustan petrolium corporation Ltd.So plz send me the written exam pattern/Q's/interview questions.please mail to eee_dharmendra@yahoo.com

1393


As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1269


From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

1305