Electrical Systems Quiz

In plumbing and electrical systems, when performing a continuity test, would you expect:

• A very high reading

• No reading at all

• A variable reading

• A very low reading

When working with electrical systems in plumbing installations, the maximum exposed tip of test probes on a multimeter should be:

• 1mm

• 2mm

• 3mm

• 4mm

In plumbing and electrical systems, when a section of pipework has been removed, which of the following should be used to ensure safety and continuity?

• Permanent polarity bonding

• Permanent earth continuity bonding

• Temporary polarity bonding

• Temporary earth continuity bonding

In a bathroom, a radiator installed near a shower may require:

• Supplementary bonding

• Main bonding

• Minor bonding

• Additional bonding

Where is an MCB typically installed in a domestic electrical system?

• Consumer unit

• Outside socket

• Extension lead

• Electric shower

The design, installation and testing of plumbing and electrical systems is covered by:

• BS6700

• BS1212

• BS7671

• BS7176

In electrical installations, the neutral conductor is identified by the insulation being coloured:

• Red

• Green/yellow

• Blue

• Brown

The relationship between current, resistance and voltage in electrical circuits is stated in:

• Boyle’s law

• Ohm’s law

• Charge’s law

• BS7671

A domestic consumer unit for plumbing and electrical systems should be installed:

• Only where there is a high demand for water and electricity

• Immediately before the main water shut-off valve

• On each individual plumbing fixture

• Immediately after the main electrical and water meters

Identify this electrical component used in bathroom installations.

• Illuminated fused spur

• Double pole pull cord switch

• Single pole rocker plate pull switch

• Wiring centre pull cord