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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between real and reactive power? and what is the importance of these

3 7162

PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

Siemens, UPL,

2 6966

What is OLTC in transformers and what is its function?

4 8293

Is there any thumb rule for cable selection for any current rating ?

1 5625

a room heater is connected in serise with a 100w bulb.if the 100w bulb is replaced by a 40w bulb then the output of the heater is increase/decrease/remain same?

College School Exams Tests,

9 27323

What is meant by Active and reactive power?

Siemens,

5 9285

What is difference between start imitation and start interlock for 3 phase motor protection ?

Siemens,

2316

what is the principle of generator, motor, and transformer and explain the definiton of flemings left hand rule , right hand rule and ohms law

NFCL,

2 18702

What are the reasons for AVR failure in LT DGsets ?

2 8105

Why breakers not synchronized when the synchroscope is going in the anticlockwise direction?

2 5545

why phase to phase voltage is 400v while phase to neutral is 220v?

1 6893

How many earthing pits are requier to disapper the surge current of one lighting arrester.

3 5441

Is it necessary to place tap changer in secondary winding or we can use on both sides?

3 6302

What is servo motor? what is its purpose?

2126

What are the disadvantges of leading power factor

5 8637


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

why we not used 11kva as a direct our electrnics component.

2860


What is acsr cable and where we use it?

1210


What is the difference between DOL starter and star delta starter

1173


What happens to voltage when current is zero?

1353


Meter p.t. ratio= 3×230/400 , c.t.ratio = 3×1 (2) A what is m.f.

1799


i want to know about torque of slip ring induction motor

2182


Dear sirs, pls check this 4-20ma to RS485 module datasheet,pls guve me some suggestions. http://www.szsunyuan.com/sy/pro_more.asp?Productid=539 Thanks. E-mail:yunianjiang99@gmail.com

2136


how is positive, negative, zero sequence is happen.. how is effect on 3 phase system

1855


distribution is maximum done by a)radial b)network c) parallel d)b & c

2077


what is the isolation transformer. what is the isolator?

2128


Could Please Explain briefly. Why used stabilizing resistance series with High impedance bus differential protection relay.

1845


what is negative and zero impedance in 3 phase induction motor ??

2247


why we dont prefer ac voltage controller instead dimmerstat [if both have same rating] for conducting experiments in laboratories?

2205


what questions will be asked for 11/33KV licence interview APSEB hyderabad. Can any one share question and answers.

18539


send me all basic electrical question and answers

2976