9289 Phase 1 302 (Pipework Joints Activity 1)

Which material is shown in the middle of the diagram?

• Copper

• Low carbon steel

• Plastic

• Brass

Explain why copper has remained a popular choice for domestic plumbing systems since the early 1940s.

• Because it is durable, has a high melting point, and meets established standards like BSEN 1057.

• Because it is the cheapest material available.

• Because it is lighter than all other metals.

• Because it is a poor conductor of heat.

Which type of copper is supplied in straight lengths of either 3m or 6m?

• R220 soft copper

• R250 half hard copper

• R300 hard copper

• R100 annealed copper

What is low carbon steel (LCS) occasionally used for in domestic installations?

• Wet central heating, gas, and oil pipework

• Electrical wiring

• Drinking water supply

• Structural beams in buildings

Under what condition can low carbon steel be used to supply hot and cold water?

• Only if it has been galvanised

• Only if it is painted red oxide

• Only if it is used for gas supply

• Only if it is used outdoors

Which of the following is NOT a way low carbon steel can be supplied?

• Painted red oxide

• Painted black

• Galvanised coated

• Stainless steel coated

What does the colour RED indicate in the context of LCS grades?

• Light grade

• Medium grade

• Heavy grade

• Central heating system

When referring to low carbon steel (LCS) pipe sizes, which measurement system is used?

• Imperial sizes

• Metric sizes

• International sizes

• Custom sizes

A plumber is tasked with installing a new central heating system in a domestic property. According to the learning material, which type of plastic pipe should be used?

• Plastic pipe for sanitary systems

• Plastic pipe for hot water, cold water, and central heating systems

• Plastic pipe for electrical systems

• Plastic pipe for gas supply

Which of the following is the most common diameter for MDPE pipes supplying a single domestic property today?

• 10mm

• 15mm

• 25mm

• 40mm