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WorksheetsElectrical Safety at Home
Total questions: 10
Worksheet time: 3mins
What is the function of a Distribution Box (DB)
To protect an electric circuit from overcurrent
To serve as the distributor of electrical power into subsidiary circuits
To protect device from current leakage
All of the above
What does RCD stand for?
Reduction Current Device
Resistance Current Device
Residual Current Device
What is the current rating for the MCB shown?
3
6000
16
400
Which of the following statement is not appropriate to prevent electrical hazards?
Unplugging an electrical appliance after using
Inspecting the wiring of an electrical equipment before using
Using a partially damaged extension cord
Pulling on the plug instead of the cable to unplug an electrical appliance
Which type of devices listed below do not respond to short-circuit current fault condition?
ELCB
MCB
Fuse
All of the above
What should be done if the insulation of an extension cord is damaged?
Use duck tape to repair it
Do nothing
Remove it from service immediately
Touch the conductors to see whether they are energized or not
Which of the signs below depict "Electrical Shock"?
The test button switch in RCD is to test whether the circuit breaker is ________ and is in the correct order of sensitivity.
short circuit
overloading
functioning correctly
All of the above
MCB is a/an _________
human protection device
circuit protection device
earth leakage protection device
All of the above
Your body is a conductor of electricity. Is this statement true or false?
True
False
