Worksheetselectrical safety
Total questions: 10
Worksheet time: 12mins
Look at the picture above! why is it not allowed?
Because it will make people stumble and hurt
Because it makes the house messy
Because creates the risk of wire overheating from too much energy
Because it incurs huge electricity bills from too much energy
why when our hands are wet, we shouldn't pull out the plug from the sokcet?
Because it will damage electronic equipment
Because it will electrocute if the wet skin touches the socket.
Because it will make the hands slippery
this will make it more difficult to remove the plug from sokcet
A battery with a voltage, V = 20 V connected to the current fuse, I = 4 A. If installed with a lamp, what is the maximum resistance of the lamp?
2 Ω
5 Ω
10 Ω
0,2 Ω
the following is a picture of things that should not be done related to electricity, except ...
A short thin piece of wire which is heated up and melt by the flowing of electric current in it, is called
fuse
circuit
cell
resistor
If electric wires and appliances are overheated due to high voltage of electric current they can....
speed
freeze
burn
slow
One of the main functions of personal protective grounds is to provide a _______ impedance path for a short circuit.
High
Low
Adequate
Smooth
....... gives a stray current somewhere to go and keeps workers from becoming part of the circuit.
De-energizing
Energizing
Grounding
Guarding
the following is the difference between fuse and circuit breakers, except...
the fuse can’t be reset but circuit breaker is resettable
the fuse breaks the circuit when the metal wire melted
circuit breakers have internal switch mechanisms that can be tripped by an great of electricity.
the circuit breakers stop the flow of electricity when its burn
the follwing is some benefits of earthing as important component of electrical systems, except...
It keeps the energy from being wasted
It keeps people safe by preventing electric shocks
It prevents damage to electrical appliances and devices by preventing excessive current from running through the circuit
It prevents the risk of fire that could otherwise be caused by current leakage
