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Unit -16: Verify compliance of low voltage systems Quiz 5
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Q1
Score: 1
Humidity
Immersion in water
Dust in the atmosphere
High levels of vibration
Q2
Score: 1
a multi-meter
an insulation resistance tester
an approved voltage indicator
a low reading ohm meter.
Q3
Score: 1
Protected by an RCD with an operating current not exceeding 30mA
Protected by an RCD with an operating current not exceeding 100mA
Protected by an RCD with an operating current not exceeding 300mA
Protected by an RCD with an operating current not exceeding 500mA
Q4
Score: 1
3.00m .
2.50m
2.25m
2.00m
Q5
Score: 1
The operating current of circuit switching devices
The rated breaking capacity of any associated protective device
The design current of the circuit
The rated operating current of any RCD in circuit
Q6
Score: 1
Shower
Towel rail
Shaver socket
Whirlpool unit
Q7
Score: 1
Circuit design current
Physical space around terminations
Presence of solid foreign bodies
Size of conductor
Q8
Score: 1
A supply separate from that of the existing installation
Been treated as being entirely separate from the existing installation
A similar wiring system to that used in the existing installation
Not impaired the safety of the existing installation
Q9
Score: 1
Conductive part of equipment which may be touched, and which is not normally live, but which can become live when basic insulation fails
Conductive part liable to introduce a potential and not forming part of the electrical installation
Equipment designed to be fastened to a support or otherwise secured in a specific location
A room or location in which air is heated, in service, to high temperatures
Q10
Score: 1
An earthed armor or metal sheath or both
A surface covering of 50mm thickness paving stones
A clear surface warning notice informing of its location
A PVC outer sheath
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