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- Subject
- Switchgear and Protectionelectrical-engineering-mcqs › switchgear-and-protection
- Published
- 17 Dec 2018
- Last updated
- 28 May 2026
Explanation
A fuse operates by melting its internal element when excessive current flows through it, thereby breaking the circuit and preventing damage.
More Switchgear and Protection MCQs
Practice related questions from the same subject.
- 1.Compared to a rewirable fuse, what advantages does an H.R.C. fuse offer?
- 2.Where is an isolator typically placed in relation to a circuit breaker?
- 3.Fuses are typically not employed for protection in circuits with current ratings exceeding which value?
- 4.Oil circuit breakers are primarily used in which type of electrical circuits?
- 5.What type of fault does a fuse in a motor circuit primarily protect against?
- 6.Which phenomenon caused by electric current is responsible for the operation of a fuse?
- 7.The rating of a fuse is specified based on which electrical parameter?
- 8.In which of the following is minimizing power loss a crucial design consideration?
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