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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

2033

why 120 devided with pole and speed multiplication to determine frequency

1 3851

if the transformer at full load have a iron loss =900w and copper loss = 1600w . what percent of the load will the transformer has a maximum efficiency?

3 16931

how determine base of given number like 302/20=12.1

2 10765

what is tri state logic gate

2199

why our power production in multiples of 11.

ABB, Infosys,

2 5432

if name plate detals of a motor or any other is missing then how to find it

1 4383

how to ctrl motor by use of ac or dc drive.plz explain evdintly

2046

how to calculate H.P of a moter from speed of a moter?

5 7759

how to calculate P.F from kva only?

3 6447

what is the difference between equipment earth and system earth.

Hofincons,

1 5492

Wtat is mean by GHOAST VOLTAGE?

3 6426

list of tests to be carried out at manufacturers end while purchasing a step up transformer of 11kv to 66kv ,2MVa Capacity.

1982

why and where we use early make & late break contacts in protection?

8318

1.why we are using blocks in withoutgaplightning arrester 2.why we ar using bushing in withoutgap lightning arrestor

2036


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

How to calculate KVA/VA rating of PT or CT from primary & secondary voltage or primary & secondary current?

2425


why magnet has north and south poles only why not east and west and why we are considering as north and south poles? why cant we consider as east and west?

2037


how to calculate singlephase motor efficiency?

2238


which type of amplifiers are used in multimete?

2206


Compare jfet’s and mosfet’s.

1284


Explain and give examples about VCB?

3310


List few applications of d.c series motor?

1133


what are the components in electrical control panel (for example: 415V, 3-ph, panel to operate utility and 3-ph DG set).

2033


How to justify this statement ??? "Capacitors in series provide less capacitance but higher voltage breakdown rating for the combination"

1875


what happens to the water pump if ground water level is slowly decreasing?our water pump is varying from no-load full-load due to this problem

1669


Can an inverter be used as a converter? How?

1945


what will happen if ac and dc supplies given

2130


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

1877


how to calculate the step resistance for slipring induction motor,how you deside the no of step for that?

2235


what is the function and use of cable differential protection relay?

2912