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 mean by harmonics?Type of harmonics?

6 8784

hi , i have 150 kw loud and we need 50 m cabil,i want to know wich size cabil we use. thanks

2207

Why let through energy not considered for ACB breaker while cable sizing?

2474

Why electrons flow only one direction in semiconductors. why can not flow both directions

1 3758

how can i apilly for electrical c licencese.sir,i completed B.Tech in electrical & electronics engineering in 201onot working any company

Subros,

1979

why ac ratings are in tons?

2 5142

if a bird sits on the service wire it didn't get shock then why the human get shock when he touches it(assume that human is not on the ground and any object i.e. in space)?

5 7275

why power factor is only cosine angle not sine angle?

2 5766

when measure the core loss of three phase distribution transformer or three phase reactor loss, one phase shown negative watt loss. why??

2040

what is the difference b/w bus reactor and line reactor?

1 17598

how to decide the capacity of accl

2493

What is Scheme Test of High Voltage Switchgear. Which tests it includes.

Siemens,

2473

How calculate cable size & voltage drop for the following requirement connected load 150 KW distance cable length 1000 M voltage 3 phase 415 v.

1 4037

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

2224

Difference between copper earthing & aluminium earthing?

2 6022

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Un-Answered Questions { Electrical Engineering }

What is 11 N1 and 12 N2 in single phase Transformer ?

1988

Dear all, I want to use Induction motor to open and close a 1 ton door. How much power do I need. Thanks

1938

i have some screw comprressor with 630kw power,i have established them with simple star to delta circuit,by the way there is so much inertia when the screw comprressors start, can you offer me contactors power with 400vac or any cataluge to choose the contactors

1908

What is Primary And Secondary Injection Test of Relay and Other Electrical Devices. How IT is carried out.

3571

How much no load current of synchronous motor

2149

What is the diffrence (Technical & Construction ) between CBCT & Normal CT?

2086

How many types of probe used in cro?

1274

What is earth system using on the floater TN-S or TT. Iam not sure and what ICCP

1792

Why efficiency in thermal power plant is low?

1178

what are factors to be consider in electrical installation like load factor,diversity factor .....

1862

what is the difference between oil surge relay and buchholz relay.

7096

what is meant by CT`s saturation ? Can we use Metering CT`s with Protetection CT`s ?

2244

what r PID controllers?why they r used?what is there purpose?plz Explain in detail

2118

Define step response?

1254

How to calculate Number of Earthing Pits....???

1649

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