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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

total numbers of earthing of a transformer

 1 2170

How to calculate of maximum demand if given 628kw, 785kva, 0.8 p.f.

 1217

Full form of bdv test?

Hi Tech Transpower,

2 2723

simple way to find busbar sizes??

SPAC,

1 2093

Why to keep capacitor bank off while generator running.

GIT,

1284

Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

 1233

why the carbon brushes are broken in srim while the motor runningtime

 1235

What is difference between Sample test and Routine test in safety standard?

Chicony Electronics,

1279

i have a motor 55kw how u will calculate cable specification for this motor

 1 2829

what is the problem when i want to close a circuit breaker by local position it closes well.but when i close it in remote position it trips

KPCL, MDIM,

1074

On what basis the the size of Lightning arrester for buildings are selected ?

KGD,

1097

What is the mmf,rgt and ngt please brief completely

cpgn,

1155

How relay works, reverse relay, master relay, os relay, earth fault relay and what is its setting point

cpgn,

1192

Why reverse relay used

cpgn,

2 2221

I have 10 amp MCB for my air conditioner of 1.5 ton capacity. When I connect the ac direct it is started running but when connected through stabliser the Mcb Get trip and air conditioner couldn't start.please confirm whether Mcb is required to be upgraded to 20 amp. There is no fault in ac and the stabliser. Please advice the reason of tripping the mcb when connected through the stabliser.

 1 2757

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Un-Answered Questions { Electrical Engineering }

what is physical distance of isolator to VCB in 33/11kv sub stations

1679

What is phase cross over frequency?

618

If I want to buy a new Xformer for my plant what are the main parameter will I need to check?

1427

what is the working principle of energy saver control panel. please give the complete calculation & theory.

1822

can you any one give exact mathematical relation between AC current and DC current?

1382




what id a dry type transformers and its function ?

1338

HOW TO CALCULATE HV CABLE SIZING?

2555

apti mainly on logical reasoning, verbal and non-verbal ability (70 percent) and remaining technical. I was in ee but technical had mech ques like on turbines and welding.

1711

1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

2372

Give accurate definitions for these electric terms: Inductor Inductance Inductive Induction Reactance Reactive Esam Baraka ٢١ ساعة

910

design a LV scheme for a 15 storied building?

1465

What is voltage ratio of a transformer?

626

The specific heats of the gas at constant pressure and constant volume are respectively 1.0 kJ/kg K and 0.72 kJ/kg K; the value of R for the gas is

688

explain wiring system

2080

kVA rating of ordinary transformer is increased when connected as an auto transformer because A transformation ratio increased B secondary voltage increased C energy is transferred both inductively and conductively D secondary current increased

2141

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