TRANSFORMER PART 7
Category –EE Online Test
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Attempt Free TRANSFORMER PART 7 Here. Read The Important Electrical MCQ From Below.
A. Reduce hysteresis loss
B. Reduce eddy current losses
C. Reduce copper losses
D. Reduce all above losses
Answer
[2] While conducting short-circuit test on a transformer the following side is short-circuited
A. High voltage side
B. Low voltage side
C. Primary side
D. Secondary side
Answer
TRANSFORMER PART 7
[3] Distribution transformers are generally designed for maximum efficiency around
A. 90% load
B. Zero load
C. 25% load
D. 50% load
Answer
[4] A transformer oil must be free from
A. Sludge
B. Odour
C. Gases
D. Moisture
Answer
TRANSFORMER PART 7
[5] The use of higher flux density in the transformer design
A. Reduces weight per KVA
B. Reduces iron losses
C. Reduces copper losses
D. Increases part load efficiency
Answer
[6] In a transformer the toppings are generally provided on
A. Primary side
B. Secondary side
C. Low voltage side
D. High voltage side
Answer
TRANSFORMER PART 7
[7] Which of the following is not a part of transformer installation?
A. Conservator
B. Breather
C. Buchholz relay
D. Exciter
Answer
[8] The path of a magnetic flux in a transformer should have
A. High resistance
B. High reluctance
C. Low resistance
D. Low reluctance
Answer
TRANSFORMER PART 7
A. Vibrations
B. Noise
C. Higher eddy currents loss
D. Higher hysteresis loss
Answer
[10] Silicon steel used in laminations mainly reduces
a. Hysteresis loss
b. Eddy current losses
c. Copper loss
d. All of the above
Answer
TRANSFORMER PART 7
