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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

what is the difference between high impedance & low impedance

L&T,

1 4692

how to converate kva to kw ?

4 7241

For 300MW and over a distance 250 km, what voltage be selected? and no. of circuit?

DPL, NTPC,

5 8282

can any one suggest me the tilt angle of my solar pannel ?? or tell me how can i know the fix tilt angle of my solar pannel?? my cordinates are 31.503629,72.993164.

1811

What is the criteria for deciding whther fire wall is required between two power transformers

1 4201

Why we have use 3 & 1/2 core cable use for general electrical supply arrangement

1 4037

What happened when the field winding of dc series motor is open?

Bhel,

2 4915

What is the distance b/w R&Y phase in 33kv T.line,11kv &440v

NTPC,

1 9890

how to differentiate a mpcb,mcb with a contactor? Explain their working operation

L&T,

2216

How Can I calculate for the photometrics requirements for a street lighting? Data given are: 45 units of 6 meter light pole with 150 watts metal halide lamp, 220 volts and installed in a promenade area.

2094

what is the function of avr when synchronous generator act as synchronous motor

1 3918

at work i have a genertor/alternater what is the easyest way to work out if it is dc or ac?

1881

why are u join ntpc

NTPC,

2160

why 3 phase is converted into 2 phase using electronics circuit why not 2 phases are diresctly putted from the 3 phase transformer??

Descon,

2187

I have calculated load for an office building which is 1200 KW as all the load is single phase therefore its 1200 kw single phase. Now i have to design Transformer and Generator for this load Please kindly give me exact answer that how much capacity of Three Phase Transformer and Three Phase Generator is required for this load.

3 6252


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2151


is there any chart showing the suitable cable size according to AMP and length ? for three phase motors

1396


If the rated speed of a d.c. Shunt motor is1440 r.p.m, which method of speed control would you suggested to obtain a speed of 1500 r.p.m?

1148


i am completed diploma in ece,and working in ht and lt lines.so is elligible diploma in ece for get electrical C Licence?plse give ur opinion?

1897


What is the most essential condition for the voltage build up for a d.c. Shunt generator?

1148


What are the differences between single phase and three phase?

2038


What is the use of Surge Capacitor in LAVT?

13705


what the principle of sincroscope?how it works?when it needed?

2286


why constant voltage transformer should be start without load? and if started then what will happen?

2042


Ratings of power transformer,Distribution transformer.

1609


ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

2949


I want to put this query to SENIOR & EXPERIENCED ELECTRICAL ENGINEERS. 1)I want to know about the control circuit diagrams for control panels. I found it difficult to understand. Is there ant booklet through which we can learn the circuit diagrams? 2)I want to learn about conduiting, laying cables, preparing cable schedules and various techniques which is the part of building infrastucture(construction field). I don't have any experience in this area. I have experience in control panels only. that's why i am not getting any opening in building infrastucture (construction field).Can I get the job in this field as Trainee Engineer? How to enter this field? I need job in PUNE

1937


In vapour absorption refrigeration machine fluids used are

1234


How much dc volt applied in cathodic protection system?

2327


A 100W electric lamp is supplied from a 115V, 60HZ source. The peak instantaneous power dissipated in the lamp filament is

2378