Level 2 Cold Water Plumbing Exam [QUIZ 1]

What is the purpose of WRAS-approved fittings?

• Aesthetic appeal

• Legal requirement, corrosion resistance, and avoidance of contamination

• Cost reduction

• Improved taste of water

What standard covers the design, installation, and maintenance of water systems?

• BS EN 725

• BS EN 901

• BS EN 806

• BS EN 1020

Which of the following is NOT an above-ground water source?

• Lakes

• Rivers

• Wells

• Reservoirs

What type of pipe is typically used for mains water supply?

• PVC

• MDPE (Medium Density Polyethylene)

• Copper

• Galvanized steel

In an indirect cold water system, which outlet is NOT fed from the cold water storage cistern (CWSC)?

• Bathroom sink

• Kitchen tap

• Toilet cistern

• Shower

Which fluid category represents a significant health risk and could be toxic?

• Fluid Category 1

• Fluid Category 2

• Fluid Category 4

• Fluid Category 5

Which fluid category consists of wholesome water supplied by the water undertaker?

• Fluid Category 1

• Fluid Category 3

• Fluid Category 4

• Fluid Category 5

What is a Sure Stop valve?

• A type of pressure-reducing valve

• A diaphragm valve that closes under water pressure

• A manually operated gate valve

• A double check valve

What is the primary function of a stop valve?

• Controls water flow at low pressure

• Used for isolating appliances

• Used on mains pressure, can be maintained and repaired

• Prevents backflow of water

Which valve is typically installed before an appliance like a toilet or boiler?

• Fullway gate valve

• Isolation/service valve

• Stop valve

• Drain-off valve