Hot water ppt1 quiz level2

Which system type includes "Open-vented hot water heater"?

• Localised system

• Centralised system

• Gas-fired system

• Electric system

What is the role of the heat source in the system?

• To cool the water

• To store the water

• To heat the water to approximately 60ºC

• To filter the water

In what type of properties is this system commonly found?

• New properties

• Older properties

• Commercial properties

• Industrial properties

What method is used to transfer heat from the boiler to the cylinder?

• Conduction

• Radiation

• Convection

• Evaporation

What is the traditional type of hot water system described?

• Sealed system

• Open vented system

• Pressurized system

• Closed loop system

To what diameter is the draw-off pipe reduced for other appliances in a direct system?

• 10mm

• 15mm

• 20mm

• 25mm

What is a characteristic of a direct system in plumbing?

• Water is heated indirectly through a heat exchanger

• Water is heated directly from a boiler or immersion heater

• Water is heated using solar panels

• Water is heated using geothermal energy

In a direct system, where does the hot water rise?

• Secondary return pipe

• Cold feed pipe

• Primary flow pipe

• Hot water distribution pipe

What is the cold feed responsible for in a direct system?

• Supplying cold water to the cylinder

• Returning hot water to the boiler

• Distributing hot water

• Heating the water

Which of the following is NOT a length available for immersion heaters?

• 11"

• 18"

• 24"

• 36"