Hot and cold water systems​ (Indirect) Plumbing Lv1

What is directly fed off the mains in an indirect cold water system?

• Kitchen sink and cistern in the loft

• Bathroom sink

• Shower

• Garden hose

What relies on gravity in an indirect cold water system?

• All other appliances except the kitchen sink

• Garden hose

• Cistern in the loft

• Kitchen sink

What happens to the pressure when an outlet is nearer to the cistern?

• It stays the same

• It increases

• It decreases

• It stops

What can be done to stop the cistern from refilling?

• Open the gate valve

• Remove the cistern

• Close the service valve before the float-operated valve

• Increase the pressure

How can the feed to the cistern be isolated?

• By opening the stop valve

• By closing the stop valve on the incoming mains

• By using a pump

• By removing the cistern

What will happen if the gate valve on the cold distribution is closed?

• The cistern will refill faster

• The pressure will increase

• Water will stop flowing to all outlets except the kitchen sink

• Water will flow faster to all outlets

What is the system known as due to its reliance on gravity?

• Gravity-fed system

• High-pressure system

• Low-pressure system

• Direct system

What affects the whole house when its valve is closed?

• Gate valve on the cold distribution

• Service valve before the float-operated valve

• Valve on the kitchen sink

• Stop valve on the incoming mains

What is the effect of closing the service valve before the float-operated valve?

• Increases water flow to the kitchen sink

• Stops the cistern from refilling

• Decreases the water pressure

• Stops water flow to the bathroom

What determines the water pressure at an outlet in a indirect system?

• The size of the cistern

• The time of day

• The distance from the cistern

• The type of appliance