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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

DAE,

1635

how to calculate the slowness and fastness of energy meter if we have different kw load for example (0.746 kw and meter rev constant 400 and we calculate the 2 rev in 30 sec) please explain the formula thanks

WAPDA Water and Power Development Authority,

1 6681

What is the effect of using an underrated size cable to supply electrical power to a 3 phase ac electrical motor? What is the effect of using an overrated size cable for the same motor?

1 5133

advantage and disadvantage of team work?

Ethio Telecom,

1664

why CRGO material used in transformer?

Honda, Yazaki,

2 4142

how to identify vector group of three phase transformer by voltage method?

AAU,

1578

Why different Pressure switch used in marine boiler water circulation system

MMD,

1730

Our transformer capacity is 500kva & voltage ratio is 11kv/433v step down tf.Now i need to know if my input voltage is 10500v and what would be the secondary side voltage i.e output voltage ?

Helma,

3 4760

what is the abbreviation for F.M In FM-200 fire suppression system

1 7509

why induction motor take more current when motor start time and this current take for 1 hours when motor is start.

2 3227

How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

1504

Can we install and run MCCB suitable for 440v 3Phase 4wire system, on a 220V 3Phase 4Wire System.

3 3807

What is neutral and how to produced

L&T,

1 4002

How to calculate VCB current rating for 2000 KVA transformer

Yamuna Power and Infrastructure Ltd,

1 9293

oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

1990

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Un-Answered Questions { Electrical Engineering }

why we change the direction of winding in rotor ?how we make the north and south pole?

2008

Enlist four components of electrive drives.

1792

what is spadar bar .why I use in DC generator.

1881

what is the difference betweem star connected motor & delta connected motor?

2318

Whether the vacuum contactor requires Short circuit protection?If No,why?

1999

when 20hp 3 phase motor start no load condition in star or delta connection.find current and write formula.(tariq)

2028

1)What is a Triode? What are its uses? 2) What is a Triac? 3) What is a Thyristor?

2577

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

2226

What is the rotor frequency of 10 Hp 1440 RPM 50HZ 415V ?

1893

What are the applications of the electric motors?

1025

hi all i like to know vat is power plot in control systems also i want to know abt latest trends in electrical & electronics

1903

Working of microwave oven?

2210

Is it acceptable of installing an earth pit in planters area where bare copper cable, earth rod and connection are susceptible to corrosion due to water?

1905

why in a swquence network representation, the negetive sequence generated voltage is taken as zero?

1971

WHY THE RATINGS OF THE TRANSFORMER IS 33KV WHY NOT OTHER???

2333

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