Cold Water Systems Quiz L3P2 U5,2.4:5

What are full-way gate valves used for?

• Isolating low pressure water supplies

• Isolating high pressure water supplies

• Controlling water flow in storage cisterns

• Draining water from the system

What is the working principle of full-way gate valves?

• They restrict the flowrate of water

• They have a gate that rises to allow water flow

• They rotate clockwise to allow water flow

• They use a rubber washer to stop the flow of water

What pressure of water is not recommended for full-way gate valves?

• Any pressure

• High pressure

• Medium pressure

• Low pressure

What does 'full bore' mean in relation to gate valves?

• The valve has a rubber washer

• The valve is fully open

• The valve has a large diameter

• There are virtually no restrictions in the valve allowing water to flow at full pipe bore

What does a spherical plug valve contain to allow water to flow and to close the water off?

• A screwdriver slot

• A gate that rises and falls

• A brass ball with a hole through it

• A rubber washer

What is another name for a drain off valve?

• Isolation valve

• Full-way gate valve

• Spherical plug valve

• M/T valve

Where should drain valves be placed in the system?

• At high points

• At low points

• At the water source

• At the end of the system

What type of drain valve is recommended for use?

• Male threaded end

• Female threaded end

• With packing glands

• Without packing glands

Which regulations should drain off valves be fitted in accordance with?

• Building Regulations

• Health and Safety Regulations

• Water Supply (water fittings) Regulations 1999

• Environmental Regulations

What are drain valves used for?

• Isolating water supplies

• Controlling water flow

• Repairing and maintaining systems

• Increasing water pressure