Fuse Multiple Choice Questions and Answers


26.  According to the fuse law, the current carrying capacity varies as


   A. Diameter

   B. Diameter1.5

   C. Diameter1/2

   D. 1/Diameter


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B. Diameter1.5

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27.  The fuse blows off by


   A. Arcing

   B. Burning

   C. Melting

   D. None of the above


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C. Melting

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28.  The material bast suited for manufacturing of fuse wire is


   A. Silver

   B. Copper

   C. Aluminium

   D. Zinc


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A. Silver

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29.  A fuse is provided in an electric circuit for


   A. Safeguarding the installation against heavy current

   B. Reducing the current flowing in the circuit

   C. Reducing the power consumption

   D. All of the above


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A. Safeguarding the installation against heavy current

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30.  A fuse is normally a


   A. Power limiting device

   B. Voltage limiting device

   C. Current limiting device

   D. Power factor correcting device


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C. Current limiting device

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