WorksheetsEarthing and Testing Quiz
Total questions: 10
Worksheet time: 10mins
An electrical intake system which uses an earth rod would be classed as
TT
TN-S
TN-C-S
PME
Which of the following would not be one of the human senses to use during the initial verification of an addition to a lighting circuit:
Sight
Hearing
Taste
Touch
Which of the following earthing systems has the path for earth leakage currents via the earth itself:
TN-S
TNC-S
TN-C
TT
Earthing is necessary to give protection against
Danger of electric shock
Voltage fluctuation
Overloading
High temperature of the conductors
Factors on which soil resistance depends
Salt Concentration
Depth of electrode
Moisture
All of the above
Which one of the following is used in earth pit:
Aluminum and Iron
Graphite and Silver
Graphite and magnesium
Salt and charcoal
Generally grounding is provided for
safety of equipment only
safety of human beings only
safety of equipment & human beings
none of above
What is an earth electrode?
electrode that is connected to earth
material used for earthing
electrode connected to the circuit
electrode which is connected to the mains
Earth electrode provides ___________
high resistance
medium resistance
low resistance
very high resistance
The preferred method of testing RCD's are:
Built-in test button
Use of RCD Tester
Use of Multimeter
Use of Ohmmeter
