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In domestic house wiring applications, the most commonly used fuse is ______.

  • A.electromagnetic fuse
  • B.rewireable fuse
  • C.HRC fuse
  • D.residual fuse

Answer: B

In domestic house wiring the most commonly used fuse is the rewireable fuse, also called the kit-kat fuse, in which a fuse wire is fitted in a porcelain carrier and can be replaced when it has blown. HRC fuses are costlier and are used in industry, an electromagnetic fuse is not a common type and a residual fuse is not a term used for a fuse. The answer is rewireable fuse, option (B). The fuse wire is fitted in a porcelain carrier and the wire is replaced after each blow, and this is cheap and simple, which is why it is used in houses and small shops.

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