Electrical Engineering Interview Questions
Questions Answers Views Company eMail

If the characteristic Impedance is equal to load Impedance then…… a) voltage will be increased b) power transmission is zero c) …… d) max. power is transmission to load

2 4789

The normal highest generated voltage in India is a) 6.6KV b) 132KV c) 11KV

13 23743

The corona effect is more in a) summer b) winter c) dry weather d) humidity weather

CPCL,

10 15386

ynchronous M/C with under excitation with reactive power absorption , acts as a) synch. Motor b) synch gen c) synchr capacit

4 4138

Why size of HT cable is less then LT cable inspite of the fact that voltage is higher in HT cable?

L&T,

2 7287

How will I know that how many batteries I should connect to my UPS unit?

3 7900

A 25MVA 3300/400V T/F is termed as per winding is …… a) primary 3300V & Secondary 400V b) primary 3300V & low voltage winding 400V c) High voltage winding 3300V & Secondary 400V d) High voltage winding 3300V & low voltage winding 400V

Engineers India Limited,

4 5232

Buchholz relay is used ………. a) protection T/F b) oil T/F c) Air core T/F

Engineers India Limited,

8 13695

Resistor switching is used in which type Circuit Breaker ? a) oil filled CB b) Air blast CB c) Gas filled CB

Engineers India Limited, wbsedcl,

11 28108

In EHV tranm. The conductors are …….. a) Cu roads b) Cu bars with Si c) Cu tube with Si plate

Engineers India Limited,

2 4597

the max. power will be transferred if …… a) sending end vol. is high b) receiving end v is high c)…….. d) corona loss is least

Engineers India Limited,

2 4412

Moving Iron instruments are applicable with a) DC only b) AC only c) DC & AC

Bhel, Engineers India, Engineers India Limited,

14 14712

. The string effcy in AC sys is 80% Then for same power, the string effcy in dc sys is a) less than 80% b) 80% c) more than 80% d) zero

Engineers India Limited,

1 2064

The temperature rise in the sys, which leads to ….. a) Increases stress& length b) increases stress but decreases length c) Decreases stress & increase length d) decrease stress & length

Engineers India Limited,

1 3000

According to underground cables a) stress b/w sheath & conductor is high b) inrush of core & conductor

CDS, Engineers India Limited, TNQ,

1493


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

What is the comparison between 30mA DP RCCB and 100mA DP RCCB and can replace it against 63A MCB

1090


What is the normal phase difference between the voltage and the no-load current in a transformer?

669


how to generator maintenance (A Check, B check,Etc)

1740


please give me solution to rectify the emi(electromagnetic interference)

1418


why would the rotor rotate at sub synchronous speed against the direction of rotating flux when d rotor of 3 phase IM is connected to 3 phase balanced supply and the stator windings are shortcircuited ??

1502






sir pls send the je exam - 2008 and other model question papers..

1637




1624


1- What is the Polarization Index number be good for 15KV 3c#500MCM electrical cable? 2- Can I use the IEEE Std 43-2000 to perfom the PI test? Thanks

2877


what is the IEC standard for Power Cable installation in onshore (like in direct buried ground or above groung)

2100


what is the pulse and audio frequency transformer? what is different between induction regulators and tap changing transformer?

1616


EXPLAIN THE TERMS "INTEREST AND DEPRECIATION" AS APPLIED TO ECONOMICS OF POWER GENERATION.

1746


What is 11 N1 and 12 N2 in single phase Transformer ?

1474


How do you determine the size of transformer radiators in a transformer?

1410


what is cascade speed control device?and how this device control the speed of motors?

1526


i have applied for the post of RRB section engineering chennai board please send me previou papers and solved answer. my mail id jagarapusrinivas@gmail.com

1455