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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How over load relay works.

1 2340

What is spike & surge.

2 3081

what is AH of battery


6 22450

what is diffrent of RCCB & MCCB

6 10440

Why is shaft current insulation required on large motors & when should it be checked i.e. before or after assembly?


2 2966

How stabilizer works

1 2425


2 2645

Tell me harmfull effects of over voltage,under voltage,spike,surge,transient & noise.

1 3778

Which type of material used for fuse wire & solder wire.

13 54721

How would u describe the function of a generator & motor?

5 5717

what would u consider to be the basic purchase order information you would need to proceed with a cable inspection assignment?


Define magnetic centre in a motor?

1 12027

For which purpose the temp. rise test of transformer is conducted?

2 4152

regarding safety what would u consider the most important rules to observe when inspecting electrical equipment?

Reliance, Southco Utility,


Name the component u would expect to find in a switchgear assembly?


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Un-Answered Questions { Electrical Engineering }

any one guide me to reduce the power factor of diesel Generator from 0.97 Leg to 0.8 Leg.with out any change in my load.


Is there chopping current in resistive circuit


What is the need for a controller?


why r we using shell transformer for low voltage


If i have two 3000 kW motors and the whole facility requires a 10 MVA transformer. What would be better installing two 5 MVA transformers(one for 1 motor ) or just a single 10 MVA transformer for both of them. Give reasons for your answer.


standard earthing rating for power line..


what is KA rating and how can we choose switchgears on applications


How Calculet The UPS AH In Load


The 3 phase Delta connection RB=440V, BY=350V,.......* is Line to Line voltage RY= ? And Formula....?


How to design the NGR Resistance


What is the effect of positive feedback on stability of the system?


Help need in transformer !? Hello Friends The parameters of 2300/230 v 50hz t/f is R1=0.286 ohm R`2=0.319 ohm Rc=240 ohm X1=0.73 ohm X`2=0.73 ohm Xm=49.2 ohm Secondary Load impedance ZL=0.387+J0.29 solve the exact equivalent circuit with normal voltage across primery.. I know every thing but i cant find CURRENT I1=? and I`2=? Please help me give solution or only Formula please please...


state the disadvantages of carbon filament???


how is positive, negative, zero sequence is happen.. how is effect on 3 phase system


temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%