9189PH2CWPPT5Q3

Stop valves are designed for isolation of which type of water systems?

• Low-pressure hot water systems

• High-pressure cold water systems

• High-pressure hot water systems

• Low-pressure cold water systems

Why should stop valves not be used on low-pressure supplies?

• They are too expensive for low-pressure supplies

• They increase the pressure too much

• Their restrictive internal design is not suitable

• They do not have an arrow on the valve body

Stop valves for domestic use are manufactured to which British Standards?

• BS 1010 only

• BS 5433 only

• Both BS 5433 and BS 1010

• Neither BS 5433 nor BS 1010

What indicates the direction of flow of the water in stop valves?

• The color of the valve

• The position of the tap wheel head

• An arrow on the valve body

• The size of the valve

What type of installations are full-way gate valves used on?

• High-pressure installations

• Low-pressure installations

• Outdoor installations

• Industrial installations

Why are full-way gate valves known as 'full-way'?

• Because they can be installed in any direction

• Because they are fully automated

• Because the design allows water to flow at full bore without much restriction to the flow rate

• Because they can be used in full-circle systems

Why should full-way gate valves not be used on high-pressure supplies?

• Because they are too expensive for high-pressure applications

• Because they tend to allow water to pass by the gate when the valve is under pressure

• Because they are not durable enough for high-pressure conditions

• Because they restrict the flow rate too much

What is the primary use of spherical plug valves in plumbing?

• To regulate water pressure

• To isolate appliances and terminal fittings such as taps and FOVs

• To measure water flow

• To heat water

Spherical plug valves are available in which of the following styles?

• Only with a handle

• Only without a handle

• With or without a handle

• Only for industrial use

What is the alternative method for operating a spherical plug valve if it does not have a handle?

• Using a wrench

• Using a screwdriver slot to isolate the water

• Using a lever

• Using a pedal