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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

why+ve is earthed in electrostatic precipitator in thermal power plant

2430

what is the use of sdf?

Areva, SWAN,

2062

working principle a.v.r. ?

Gem Sugars,

2353

what happen as when voltage drop(or may decrease) ? in case of atomic base theory?

1993

what type of relay has to be used for tripping the circuit from mains when a fault occur in a machine

3 4850

why electrical power has benn needed for speed controller of woodward governor control for biomas power plant

1 3410

What is the difference between EXE and EXD

1 13113

What are the neccessary safety arrangements before commissioning of HV substation?

1 3376

will a fluorescent bulb work when dc is passed through it?? if not why??

TCS,

4 19881

which inert gas is most apt to be used in a fluorescent lamp?? why ??

1 3651

any application of back emf

MahaGenco,

2076

in a distribution board,if we have a load and we have selected a cable after making all calcs (Deratings and V.D , ect...) the cable we have selected was 10mm.sq. now, shall the internal cable inside the switchboard should be 10 mm.sq Like the external or it can be Less???? if somebody have an specs or information he can help D:

1 3165

power 148kw i need exat cable size in 148 kw in 3phase what size of cable can i used.

3 5371

How can we increase fuel-power ratio of any DG set?

1772

2. The heaviest and lightest strings on a certain violin have linear densities of 3.0 and 0.29 g/m. What is the ratio of the diameter of the heaviest string to that of the lightest string, assuming that the strings are of the same material?

1 4608

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Un-Answered Questions { Electrical Engineering }

State thevenintheorem?

1023

Dear Sir/Madam, I have one questions we have three steam turbines and one Gas turbine and our industry linked with the public network, we have protection system one of the protection is reverse power we can export just four MW only i would like to ask about how to calculate the reverse power. Thank you in advance best regards

2049

what is meant by rotating magnetic filed

2009

diff.between servo motor and ac motor

2004

We have 110Vac ,10A ac supply which is converted into 110VDC & How much DC current? which factor is reqired for dc current calulation?

5067

What is difference between start imitation and start interlock for 3 phase motor protection ?

2218

Draw the DOL starter and star delta starter drawing?

2948

Power factor =1.000 at factory in supply. However, PF = 0.8 at motor end. Current = 100 Amp, Voltage = 400 V. What is the power distribution loss? Can I reduce it by adding capacitor at the load feeder?

2011

This is urgent!! What is a Thyristor-based 3-ways selector switch with Zero crossing control? how does it operate and where is it mostly found in a system?

2016

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

1987

what is the formula of starting current of 3phase and 1 phase motor???

2269

How can get elongation of 2 k.G aluminium, if elongated aluminium dia is 2.5 mm?

2261

What are the roles and responsibilities of electrical engineer in cement plant

1992

What is block diagram?

1047

why the protection turbo generators is most complex?

1991

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