Hot and cold water systems​ (Direct) Plumbing Lv1

What is the purpose of an isolation valve?

• To stop the incoming mains water

• To increase water pressure

• To heat the water

• To cool the water

Where is the isolation valve commonly located?

• Near or under the kitchen sink

• In the loft

• Outside the property

• In the bathroom

How many types of water systems are mentioned?

• One

• Two

• Three

• Four

What type of water system supplies water directly under mains pressure?

• Combination system

• Direct system

• Indirect system

• Isolation system

What is a benefit of a direct cold water system?

• It is a low-pressure system

• It is more expensive to install

• There is no stored water for the cold water system

• It requires a lot of stored water

Where can the rising main continue up to in some properties?

• The kitchen

• The bathroom

• The loft area

• The basement

What happens to the water pressure as the outlet gets higher in the property?

• It decreases

• It stays the same

• It stops

• It increases

Is there a need for stored water in the loft with a combination boiler system?

• Only in summer

• No, never

• Yes, always

• Only in winter

Which system is cheaper to install?

• Indirect system

• Isolation system

• Combination system

• Direct system

What is the main advantage of using an indirect water system?

• It requires no energy to operate

• It can operate at higher pressures

• It reduces the risk of contamination

• It is easier to install than direct systems