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 4496

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

3 9069

WHAT IS MEANING OF VECTOR GROUP FOR TRANSFORMER

2 12540

Explain the operation of damper winding

2 4613

can we use ELCB and RCBO in one db

6 7443

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

IOCL,

1566

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

SSC,

2 4038

Transmission through a short line depends on

1668

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

1 2690

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

4 4845

Latching current is slightly less than ?

2 3486

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

1 2793

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

1 3020

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

2 4359

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

1415


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Un-Answered Questions { Electrical Engineering }

Explain how you intend to work under pressure to meet up with deadline target?

1921


Earth bits close or open. Which is correct

1303


Explain how you can give the overload setting to any Motor Protection Relay for a HT motors with formula and example?

1642


1.dg on load alarm/stop alarm... 2.dg on load. piu alarm alarm kaise chek krte hai

1380


dg started in plc mode and load taken later one battery terminal connection will be disconnected by loose connection what will happen for dg and shall we connect battery terminals while dg in load time?

1514






can u give me a brief idea about power line carrier communication ??

1384


what clearance required for 4.5 mva dry type transformer?

1617


WE ARE PLACE A NEW 75 KW MOTOR FOR JPF.IT IS CONNECTED IN M.C.C. WHEN WE ARE STARTING M.C.C.INCOMER IS TRIPPED.THEN WE ARE CONNECTED IN P.C.C WITH A MM30 RELAY PROTECTION THEN WE ARE STARTED MOTOR WILL RUN SMOOTHLY.

1617


What is the difference between rated and per unit in transformer?

1696


What can you contribute to the progress of our Company as an employee if you are selected?

4868


advantage of motor design on higher power factor . normally motors are designed for .8 power factor. what is advantage of designing at .88 power factor

1380


what work will do diffrential realay DG set

2318


is it possible to turn on the single phase star delta on delay timer using 24 v dc ?

1463


Batteries. What is the difference between Lead and Nickel batteries ?

1678


what is meant by brushed alternator & its working principle ?

1537