Electrical Engineering Mcqs — Test 123

Page 1 of 3

Question 1

Reduction in core losses and increase in permeability are obtained with transformer employing__________?

Question 2

In a power or distribution transformer about 10 per cent end turns are heavily insulated__________?

Question 3

N atural air coo ling is generally restricted for transformers up to__________?

Question 4

A shell-type transformer has_________?

Question 5

A transformer can have regulation closer to zero___________?

Question 6

The function of breather in a transformer is___________?

Question 7

The secondary winding of which of the following transformers is always kept closed?

Question 8

The size of a transformer core will depend on__________?

Question 9

Short circuit test on transformers is conducted to determine____________?

Question 10

For the parallel operation of single phase transformers it is necessary that they should have___________?