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The fusing factor is

None of these
always more than 1
always less than 1
always 1

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To protect most of the electrical equipment handling low power, the types of relays used are

Both of the listed here
Electronic and bimetallic
None of these
Thermocouple

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The torque produced in induction type relay is

proportional to square of the current
inversely proportional to the current
inversely proportional to the square of the current
proportional to the current

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A fuse performs

both detection and interruption functions
None of these
detection function only
circuit interruption function only

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The advantage of HRC fuse is that it

has high speed of operation
does not deteriorate with age
All of these
is quite cheap

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HRC fuses provide best protection against

reverse current
open circuits
overload
short circuits

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