In an actual transformer the iron loss remains practically constant from noload to fullload because

A)
primary voltage remains constant
B)
core flux remains practically constant
C)
value of transformation ratio remains constant
D)
permeability of transformer core remains constant

Correct Answer : Option (B) :   core flux remains practically constant

Recently Updated in Transformers Questions
Which of the following parts of a transformer is visible from outside?
A)
Core
B)
Bushings
C)
Primary winding
D)
Secondary winding

Correct Answer :   Bushings

A no-load test is performed on a transformer to determine
A)
efficiency
B)
copper loss
C)
magnetising current
D)
magnetising current and loss

Correct Answer :   magnetising current and loss

Natural oil cooling is used for transformers up to a rating of
A)
250 kVA
B)
500 kVA
C)
1000 kVA
D)
3000 kVA

Correct Answer :   3000 kVA

EEE MCQ's

Capacitors
RC Circuits
RL Circuits
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Quantities and Units
Ohm's Law
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