2) In a motor circuit, a fuse provides :

over-load current protection

short-circuit protection

open-circuit protection

none of the above

Answer is:

short-circuit protection

Electrical Accessories MCQ - Electrician (Set-1) with Answers

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Related Electrical Accessories MCQ - Electrician (Set-1) with Answers

3) A fuse operates due to the _____ effect of the electric current :

magnetic

electrostatic

heating

chemical

Answer is:

heating

4) The fuse rating is expressed in terms of :

voltage

current

kVA

VAr

Answer is:

current

Explanation:

The fuse rating can be calculated by dividing the power used by the appliance by the voltage going into the appliance.

I (Amps) = P (Watts) ÷ V (Voltage)

Normally the fuse rating is expressed in terms of current.

The fuse rating is expressed in terms of :

5) A delayed-action cartridge fuse is used for :

motor circuits

lighting circuits

fluorescent lamp circuits

heating circuits

Answer is:

motor circuits

6) A fuse should be connected in :

series of neutral conductor

parallel of neutral conductor

series of live conductor

parallel of live conductor

Answer is:

series of live conductor

Electrical Accessories MCQ - Electrician (Set-1) with Answers

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