DGVCL Exam Paper (11-12-2011)
If a 5 A fuse is blown frequently in a house lighting circuit, it is required to

Insert a fuse of higher current rating
Reduce the load
Insert a fuse of higher voltage rating
Check the load

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DGVCL Exam Paper (11-12-2011)
Distribution transformers have good all day efficiency due to

Low voltage
Low iron loss
Low copper loss
Low copper as well as iron loss

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