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 is need of air gap in expansion section in busbar?

3 6577

how to calculate power loss cost of aluminium conductor and copper conductor?500v,100A,68mm area squre busbar.

1 3939

what is the differation bewreen kwh & fundamental kwh in electronic trivector meters

2202

when it is possible kvrah lead & fundamental kwh be equal in electonic trivector meters (3 ph)

1994

WHAT IS THE REASON FOR THE GROUND PIN IS BIGGER IN SIZE COMPARING TO OTHER PINS?

13 16539

why in power staions distriution r like 11kv,33kv,66kv in india?

4 8165

why we using capacitor in single phase motor ?

14 20539

state the construction of incondenscent lamp?

2139

state the disadvantages of carbon filament???

2940

how we can know the rating of transmission line by no. of insulators disk ??????????

NTPC,

3 23076

how the phase convertor changes the no. of phases

1995

what you mean by current? what you mean by voltage? what is difference between star and delta connection in motor side?

Adani,

2 5887

how we can classify the circuit braker???????

1 4322

which seven wonders are selected in india in 2008-2009

2 3962

What are the rating wise protections required for Generators from 600KVA to 2000KVA

3 5069

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Un-Answered Questions { Electrical Engineering }

What is difference between YNyn0 and YNyn ??

2559

How will calculate losses in an multi core Aluminium LT cable of different sizes & upto what length we can use a LT Cable ?

2149

what is ramping rate of generator

2069

difference between servo motor and synchronous motor

2330

Why the field rheostat is adjusted such that the voltmeter reads 380V

2293

What is grid collapse? what is the reason for it?

2129

Is it required to lay GI wires along with GI/MS conduits from one point to another point though separate earthing cable is conncted from DB to Socket?

1998

Why GRR starts from 60% of motor speed why not less than 60%?

1702

11kV capacitor bank of rating 2.4KVAR, is charged with protective relays of only over current & Earth fault &.......without Over Voltage, Under Voltage & Neutral Displacement Relay. Is it advisable??

1600

In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

2172

Hi My dear all Friends, There is a question regarding HVAC Engineering and widely used in Power Projects. Question- What is the diffrence Between REF, SEF and Differential Protection....???? Where REF - Restricted Earth Fault SEF - Senstive Earth Fault.

2181

2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

2302

design a LV scheme for a 15 storied building?

1949

How is magnetic leakage reduced?

1172

How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

2600

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