Fuse Multiple Choice Questions and Answers
1. The primary function of a fuse is to
A. Open the circuit
B. Protect the appliance
C. Protect the line
D. Prevent excessive currents from flow through the circuit
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D. Prevent excessive currents from flow through the circuit
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2. The fuse rating is expressed in terms of
A. Current
B. Voltage
C. VAR
D. KVA
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3. if use is never inserted in
A. Neutral wire
B. Negative of DC circuit
C. Positive of DC circuit
D. Phase line
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4. Fuses have got advantages of
A. Cheapest type of protection
B. Inverse time current characteristic
C. No Maintenance
D. Current limiting effect under short-circuit conditions
E. All of the above
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5. Protection by fuses is generally not used beyond
A. 20 A
B. 50 A
C. 100 A
D. 200 A
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