Other Electrical Engineering Interview Questions 

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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. 

2 
what is diffrence between MH LAMP and HELLOZEN LAMP 

1 
what is ph test in coolent cheking 

2 
Why should The rating of 11 kV DO Fuse is in mulyiple of
hundred(200 Amp. 40 Amp, etc) Ampere wheareses the its
fuse elemnt has rating in just few Amp (< 12 Amp)? ( Is it
jusy beacuse of factor of safty). 

1 
without any theoretical calculations, can u approximately
tell the current rating of a motor(above 30hp)working at 415VAC. 

7 
Show formula which gives full load current 4.8 amps of a 3
HP motor and 27 amps of a 20 HP motor having 3 phase 460
volts, 0.8 Pf. 

2 
why single induction motor is not self starter? 

3 
iam completed my DEEE in eillm university. can i get the c
licence in tamilnadu its possible or not 

1 
Why we didn’t feel electric shock in an electric train ?? 
NTPC 
8 
I am an electrical engineer, I found variation in KWH between
DG and EB for Same load for same duration, can any one help me
why this variation arises? 

1 
Is there any option to replace two Genset of capacity 125KVA
with one higher capacity for same office? 

8 
what is the std. earthing resistance for 440V system or
m/c, 33000/440 Volt substation? What is the std.? 

1 

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