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Electrical Engineering Interview Questions
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to vary valtage from 0 - max a variac is necessary . so how to design for high power applications nearly about 200KW power

 1659

how will reduce the voltage. if 12volt/250ma transformer toreduce 6 volt

 1594

How you calculating the current for a 2.5 Sqmm cable. A 30 Hp 3 phase AC motor of power what size of cable is used for this motor.

Siemens,

7 22425

What is the difference between Ceiling Fan armature and Tablefan Armature or winding.

Pricol,

5 9385

If we connect capacitor in series DC supply so what happened?

 4 8671

if we supply DC power to AC transformer then what its result?

 15 14248

can d.c.transformer exist? if yes then what its max. rating?

 6 7075

give me atleast four differences between circuit and network

 1796

how to calculate the cable size

 3 5984

why motor burns ?

 5 7717

What is correction factor in Tan delta test?

 1 8026

effect of single phase transformer on full load current?

 2 3903

What happens with squirrel induction machines if the ends of rotor conductors are kept open? Explain

5 6203

How we can change the direction of rotation of Induction motor? Prove it using graphical methods.

Adama University,

4 5861

figure of phasor diagram of transformer when full load or no load ?

Swastik, TCS,

1 11236

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Un-Answered Questions { Electrical Engineering }

What Is Connection APFC Panel In Compony.

996

Why field rheostat is kept in minimum position while armature rheostat at maximum position?

687

why power factor is important?

8628

Could you measure voltage in series?

800

Is there any standard guidelines/Criteria to design NGR/NGT.?

2433




fuel-air ratio in a petrol engine fitted with suction carburettor,operating with dirty air filter as compared to clean filter will be

688

is there any phase difference occurs while primary and secondary side mutual induction occurs?

1585

Is Transol transformer oil comparable to nynas nytro libra?

2676

In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

1805

what is induction furnance? how many phase supply given io its coil for 15 or 20 ton furnance?

2747

What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

1663

I have two PLC processors. I want to communicate both processor with each other. How i can do so?

1782

How do we calculate the Out put voltage of generator, after the excitation is being given?

1558

what is sevice settings for mccb?How can be it setted?

1645

How o select the electrical fuse?.What are its characteristics.How to select the material od fuse?

1545

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