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 to use 50hz only in tansmisson and as well as in distribution why not60hz?

2 4345

In a overhead system why the voltage between line &ground is taken for basic comparison ?and in case of underground cables the comparison take only by the voltage between cables?

L&T,

1 3939

how dc generator produce voltage initially?

Bisleri,

1 3596

the single phase voltage is 230 volts and threee phase is 430 v.why three phase is not 660 v?

2 7727

which relay is used for both detection & correction?(there is only one relay)

2 4562

the 230 value of voltage which is use in our home . is that value is rms, aerage or peack value of voltage?

L&T,

5 8852

wath is this mining of bts

Nokia,

2 4796

wath is this mining of dg

Nokia,

2 4446

wath is this mining of bts

Nokia, TATA,

1 3260

WHAT HAPPENED DC SERIES MOTOR FIELD WINDING OPEN. CAN POSSIBLE.

1 3837

What are HT & LT Cables? What are their values?

IOCL,

3 6470

What are armoured cables?

IOCL,

2 4941

What are the layers of protection over armoured cables?

Accenture, IOCL,

3 5598

What are insulation classes? Tell examples of each of them.

IOCL,

1 3928

What are the different types of circuit breakers?

IOCL,

3 5857

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Un-Answered Questions { Electrical Engineering }

What is the formula to calculate the no load current of a single & three phase induction motor

2231

What is Diff btw Fire Alarm & VESDA System???

2348

how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

2129

Parts of machine and their discription in details with suitable photo

2007

use of PIR in ehv breaker

2116

induction 3 phase motor terminal connection

2598

what is the minimum voltage require to injure our body?

6775

can some one clearly explain why -48 volt DC use in telecom site????

1645

how to calculate current carring capacity of cable and cable selection? 1) copper flexible cable 2) copper armoured cable 3) Aluminium cable

1560

How can we findout the maximum efficiancy of Transformer? At which load?

2041

What is the type of feedback used in an op- amp schmitt trigger?

984

Explain about how is it working Earth fault'relay and wahts the resistance value of earth bed

1482

Anyone who can recommend an equivalent to Envirotemp FR3 of Cooper?

1927

Hi everyone. Some Generators uses 3-Pole breakers with extra contactors for Neutral. Some uses 4-Pole. Why so? What is the idea behind this? Thanks in advance for the solution. Kr.

2029

What are the relays in ACB and VCB

2173

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