6. Why is earthing used at home?
A. To prevent short circuit
B. To cut the circuit in case of overloading
C. To reduce the resistance of the appliance
D. To provide alternative route of upsurge current in case of grounded circuit.
7. At home, you noticed that a portion of an electrical wire is worn out, exposing its
metallic part. What do you think might happen if you will just ignore this
problem?
A. short circuit may happen
B. circuit is of better condition
C. overloading may not happen
D. nothing happens when someone touches the wire
8. What electrical circuit condition in which current returns and takes the path of
metal casing of an appliance?
A. short circuit
B. series circuit
C. parallel circuit
D. grounded circuit
9. Which of the following directs any excess current in the metal casing of
appliances to the ground?
A. fuse
B. earthing
C. circuit breaker
D. electric sockets
10. Which electrical connection involves plugging of several devices to an outlet or to
an extension wire with multiple outlets?
A. earthing
B. single insulation
C. double insulation
D. octopus connection
11. Which situations shows that current could go through the body?
A. Direct contact with a grounded surface
B. Direct contact with live parts of the installation
c. Accidental contact with damaged wires that are seemingly not live
D. All of the above​