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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Approach of a cooling tower is the difference between temperatures of what factors?

Blue Star,

1095

What is Anemometer used to measure?

Blue Star,

1083

What is Tachometer used to measure?

Blue Star,

1201

Convert a star connected network into a delta connected network.

Syntel, Visa,

1073

What are the different types of transformers?

Syntel, Visa,

1098

What is the difference between alternator and generator?

IOCL,

1260

Which motor connection is preferable star-delta or delta-star?

IOCL,

1040

Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?

IOCL,

1179

If VFD is On but no starting commond on it. so how many outpout voltages of VFD

1119

How to checked frequency drive output voltages?

1150

What is the Current equation in series RLC circuits.

ABB, Bhel,

1006

The SFC of an engine is 0.25 kg/kW hr. when the fuel used has a calorific value of 36000 kJ/kg. the thermal efficiency of the engine is

Caterpillar,

1911

1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

Caterpillar,

2072

In a carnot engine with an efficiency of 40%, the heat rejected to the sink at 27 C is 60 kJ, then the heat supplied in kJ to the engine by the sources is

Caterpillar,

1048

The moisture in air will condense at

Caterpillar,

1136


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

High voltage test procedure of in swgr board. why should measure millivolt drop on testing time?

2062


what is the mechanism of operation of brushless dc motor why is it more wexpensive then ordinary permanent magnet motors

1952


What is the tube exial fan?

2169


1.what is meaning of curve into a mcb. 2.what is basic reason changing of curve

1963


Why are lt windings placed near the core?

1054


with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

1911


A generating system will have a total capacity of 300 MW. Find the probable forced outage when the capacity is supplied by two 150 MW units. The operating probability of all units is P=0.98 and forced outage probability rate Q =0.02 .

2597


why the India electrical supply transmission loss is high when compare to us

1943


i installed 100kva ups. what KVA genset they should provid in input side? plz any update formula or ans with reason.

2298


1. Can a 12v DC choke operate a 60v/12w PL lamp ? 2. Can a 230v ballast fire / operate a 60v/12w PL lamps.

2158


Why do not we prefer non conventional sources of energy to conventional sources?

1149


please I wont know how to calculate the vector group for power transformer ZNyn11 best regard.

1788


Difference between transition and diffusion capacitance

2934


State thevenintheorem?

1029


how the phase convertor changes the no. of phases

1962