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10 questions
1. This device helps prevent electrical fires.
A fuse
A double insulator
A receptacle cover
A circuit breaker
The safety device shown here is
An active wire
A fuse
An earth wire
A double insulator
The primary purpose of the fuse is to prevent. What?
fires caused by excessive electrical currents
electrocution caused by excessive currents
fires caused by sparking
electrocution caused by excessive potential
difference
A circuit breaker does the same job as a
earth wire
fuse
switch
AVR
Why is it important to use these electrical
safety devices at home?
To make our home safe
To lessen the consumption of electricity
To protect people from fire and electrocution
None of these
When the voltage is unstable, what device
should you use to stabilize the voltage input to
the appliances?
Fuse
Earthing
Double Insulator
Voltage Regulator
The device is used to cover power
outlets
What is a fuse?
Another name for switch
A protective device to slow down the
current
A wire with high resistance to prevent
current from passing through
A protective device for breaking an
electric current
Earth wires work better when used in
conjunction with
Circuit breaker
Double Insulator
Voltage Regulator
Switch
Earthing and double insulation work in
similar ways, and that is to protect people
from electrocution or shock. Which device
is present in a hairdryer, iron, and electric
fan?
Earth wire
Double Insulation
Both A and B
Neither A nor B
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