WorksheetsQuiz NETK04
Total questions: 12
Worksheet time: 6mins
What is the name of the earthing system that combines earth and neutral and then separates at the consumer's intake?
TN
IT
TN-S
TN-C-S
Where a three-phase supply is provided for commercial or industrial properties what is the voltage most likely to be?
230 V
400 V
110 V
11 kV
Which one of the following is an exposed conductive part?
Trunking
Gas pipe
Water pipe
Ducting
What does the abbreviation ADS, in terms of electrical installation work, stand for?
Automatic Disconnection of Service
Automatic Disconnection of Supplementary Bonding
Automatic Disconnection of Supply
Automatic Diagnosis Switch
Which of the following indicates how a circuit operates?
Site diagram
Layout diagram
Circuit diagram
Block diagram
Which one of the following would you use to determine how a piece of equipment works?
Code of practice
BS 7671
On-site guide
User guide
You need to install cable in a high temperature environment. MICC is specified to use, however the customer asks if there is a cheaper alternative. What would this be?
FP
PVC/PVC
SWA
Fibre-optic
For a new build domestic property, what would the main service fuse be rated at?
80 A
70 A
90 A
100 A
The term 'strapper cable' is associated with:
Power circuits
Ring circuits
One-way lighting
Two-way lighting
If cables are buried in a wall to more than 50mm in depth, what additional action should be taken?
None
Fit RCD
Fit HRC fuse
Fit a thermal protective relay
When a TNS earthing system is used, what element would carry a fault current?
Earth rod
Earthing sheath
Metal sheath
Metal spike
A domestic heater rated at 4.5 kW, what would the design current be?
19.56A
0.05A
1.95A
11.25A
