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

Electrical Engineering Interview Questions

Questions Answers Views Company eMail

Is it possible that Generator trip but Turbine not trip.Give explanation.

Essar,

1 4845

how can 3phase motor speed can be controlled without vvf drive?

1 5032

improve power factor by : 1)shunt reactor 2)shunt capacitor 3)series capacitor 4)series reactor

2 5690

where does core based current transformer is used? and what is the value of lux in a work station?

Space Matrix,

1 3960

Does the Impedance of the source affects the THD

1 3433

what may the reason for vector shift in a generator?

1838

What is DPR relay, And what for??

Engro,

2 6070

i have 60Hz motor, can i run it at 50Hz power supply ???

2 5179

Explain difference between stand by earth fault and residual earth fault protection?

1958

what is difference between ac1 and ac3 contactor and why it is needed to be selected?

1 16402

How can we define 'Phase'

4 6395

what is accuracy ? in any meters , coils accuracy . how can u defined that ?

Adani,

2385

power formula

1 3721

what mean by power factor

2 5114

how to maintain ht line?

1947

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Un-Answered Questions { Electrical Engineering }

What is the difference between rulling span and wind span of of an Over Head Transmission Line?

2284

how to calculate transformer load?

2429

how to calculate the battery AH

2722

An ISP is granted a block of addresses starting with 150.80.0.0/16. The ISP wants to distribute these blocks to 2600 customers as follows. a) 200 medium size businesses; each needs 16 addresses b) 400 small businesses; each needs 8 addresses c) 2000 households; each needs 4 addresses Design the subblocks and give the slash notation for each subblock. Find out how many addresses are still available after these allocations.

7625

what is meant by tranformer impedance?

2564

hwat type of motor is used in thermal gas turbine hydro nuclear power plants and why

1850

What is VSCF windelectrical system?

1850

In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

2051

what is the significance of cabability curve of alternator

2187

Why neutral point is consider as zero potential?

2561

I need to connect a synchronous generator to the grid using automatic synchronization and two circuit breakers (one for synchronization, one for end connection to the grid), how to determinate the required diameter of the cables?

2171

what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

1928

Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me

1750

WHAT IS DIFFERENCE BETWEEN CAPACITOR AND CAPACITANCE?

1961

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

4009

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