SSC JE Electrical Engineering 4th March 2017 Shift-2
For the following questions answer them individually
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 41
A 500 kVA transformer has constant loss of 500 W and copper losses at full load are 2000 W. Then at what load, is the efficiency maximum?
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 42
The all day efficiency of a transformer depends primarily on _____.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 43
In a power transformer, the breather is provided in order to _____.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 44
The stator core of a synchronous machine is built up of ______ laminations.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 45
The sag of a transmission line conductor in summer is _____.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 46
The slip rings employed in a 3-phase synchronous machine are insulated for _____.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 47
For a linear electromagnetic circuit, which of the following statement is true?
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 48
A short circuited rectangular coil falls under gravity with the coil remaining in a vertical plane and cutting perpendicular horizontal magnetic lines of force. It has __________ acceleration.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 49
Reluctance torque in rotating machines is present, when _____.
SSC JE Electrical Engineering 4th March 2017 Shift-2 - Question 50
In a dc motor the windage loss is proportional to _____.
