Question 1

Which of the following is not a part of transformer installation ?

Accepted Answer

A)  Conservator
B)  Breather
C)  Buchholz relay
D)  ExciterE) B) and C)
F) All of the above

Question 2

No-load on a transformer is carried out to determine

Accepted Answer

A)  copper loss
B)  magnetising current
C)  magnetising current and loss
D)  efficiency of the trE) A) and B)
F) A) and C)

Question 3

In a transformer the energy is conveyed from primary to secondary

Accepted Answer

A)  through cooling coil
B)  through air
C)  by the flux
D)  none of the aboveE) A) and B)
F) All of the above

Question 4

In the transformer following winding has got more cross-sectional area

Accepted Answer

A)  Low voltage winding
B)  High voltage winding
C)  Primary winding
D)  Secondary windingE) All of the above
F) None of the above

Question 5

While conducting short-circuit test on a transformer the following side is short circuited

Accepted Answer

A)  High voltage side
B)  Low voltage side
C)  Primary side
D)  Secondary sideE) A) and B)
F) C) and D)

Exam 1: Transformer Fundamentals and Operation

No-load on a transformer is carried out to determine