SSC JE Electrical Engineering 4th March 2017 Shift-2

Instructions

For the following questions answer them individually

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?

Video Solution

Question 42

The all day efficiency of a transformer depends primarily on _____.

Video Solution

Question 43

In a power transformer, the breather is provided in order to _____.

Video Solution

Question 44

The stator core of a synchronous machine is built up of ______ laminations.

Video Solution

Question 45

The sag of a transmission line conductor in summer is _____.

Video Solution

Question 46

The slip rings employed in a 3-phase synchronous machine are insulated for _____.

Video Solution

Question 47

For a linear electromagnetic circuit, which of the following statement is true?

Video Solution

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.

Video Solution

Question 49

Reluctance torque in rotating machines is present, when _____.

Video Solution

Question 50

In a dc motor the windage loss is proportional to _____.

Video Solution

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SSC JE Electrical Engineering 4th March 2017 Shift-2

SSC JE Electrical Engineering 4th March 2017 Shift-2

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?

The all day efficiency of a transformer depends primarily on _____.

In a power transformer, the breather is provided in order to _____.

The stator core of a synchronous machine is built up of ______ laminations.

The sag of a transmission line conductor in summer is _____.

The slip rings employed in a 3-phase synchronous machine are insulated for _____.

For a linear electromagnetic circuit, which of the following statement is true?

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.

Reluctance torque in rotating machines is present, when _____.

In a dc motor the windage loss is proportional to _____.

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