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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

If 3-Ph motor of same rating connected in Delta & Star for same load one by one then which connection take more current in running (not in starting)for full load.(eg 8.5 KW,3-Ph 400 V)

GE,

1 5172

in which direction real power and reactive power flow and why???????

3 10350

WHAT IS MEANING OF VECTOR GROUP FOR TRANSFORMER

2 13703

Explain the operation of damper winding

2 5499

can we use ELCB and RCBO in one db

6 9625

what is vtg limit of earth and neutral at transformer side?

IOCL,

2040

Which element has power dissipated in it when the source is removed ?

SSC,

2 5386

Transmission through a short line depends on

2263

Negative feedback circuit is an implication of ? -Shunt shunt -Shunt series -series series

1 3506

Which of the following can be operated at higher frequencies ? -SCR -MOSFET -IGBT

4 6546

Latching current is slightly less than ?

2 4485

Which of the following plant has less plant factor ? -Nuclear -Hydro -Diesel -Pumped storage

1 3495

Capacitors are used to ... -Reduce the bill of the farmer -Improve the PF

1 3711

At no load the PF of an alternator -Zero -Zero Lagging -Zero leading -None of the above

2 5356

Match the following a)(X'+Y') b)X'Y' C)XY 1)NAND 2)NOR 3)Carry

1929

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Un-Answered Questions { Electrical Engineering }

what is the differebt between ac and dc fuse?

2338

Is the theorem applicable to ac sources?

1044

before synchronizing an alternator,power factor is leading ,why?

1568

what you have to see after one week or month from the day of installation of transformer ?

1720

Difference between on line capacitor and Station type capacitor

2017

Is there a diode made that works with AC 120 volt 20 amp? If so can it completely stop all current flow in 1 direction at all times?

6728

Define demand factor?

1118

why various test are performed on electrical panels & power cables before commissioning on site & what are these test???

2000

Can we convert off line transformer to on line transformer

1984

what is the concept of directional power?

2019

how the synchronizing is obtained at bus couplers in grid substation? (because there we cannot change the frequency in one of transmission lines like in generator synchronization)

2366

How can we calculate the KVA rating of a Distribution transformer from its core details?

2069

lorteny method

2000

High speed earth switch operation with diagram

2491

difine electrical ballast in HPSVL

2091

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