Hot Water PowerPoint 2 Quiz

What is a common power rating for domestic immersion heaters?

• 1kW

• 2kW

• 3kW

• 4kW

What device is required for all immersion heaters installed today?

• Timer

• Reset button or cut-out device

• Pressure gauge

• Thermometer

What are open vented combination units?

• Pre-plumbed units with joined cylinder and cold water storage cistern

• Units that require separate plumbing for each component

• Units that are only used in commercial buildings

• Units that provide high head pressure

What is a disadvantage of open vented combination units?

• Lack of head pressure

• Complex installation process

• High maintenance cost

• Limited availability

Where are open vented combination units sometimes found?

• In flats

• In large industrial complexes

• In outdoor settings

• In mobile homes

Where is the cylinder stat placed in a hot water cylinder?

• At the top

• At the bottom

• One-third of the way up

• Halfway up

What does a prismatic cylinder use to separate primary and secondary waters?

• A mechanical valve

• An air lock

• A water pump

• A filtration system

What happens if the air bubble is lost in a single feed system with a primatic cylinder?

• The system will stop functioning.

• The secondary water mixes with the primary water.

• The primary water becomes colder.

• The system will automatically shut down.

Why might stored water systems be suitable for certain areas?

• They are ideal for high water pressure areas.

• They are suitable for areas with low water pressure.

• They require less maintenance.

• They are more energy-efficient.

What is a disadvantage of systems with a cylinder and cisterns compared to a combination boiler?

• They are less reliable.

• They take up more space.

• They provide less hot water.

• They are easier to install.