Unvented Hot Water Storage System Quiz

What is the function of the pressure relief valve in an Unvented Hot Water Storage System?

• To isolate the water supply

• To reduce the pressure in the system

• To release excess pressure from the system

• To prevent backflow of water

Where is the tundish located in relation to the temperature/pressure relief valve in an Unvented Hot Water Storage System?

• Before the temperature/pressure relief valve

• After the temperature/pressure relief valve

• At the same position as the pressure reducing valve

• Not related to the temperature/pressure relief valve

What is the purpose of the in-line strainer in an Unvented Hot Water Storage System?

• To control the temperature of the water

• To filter debris from the water

• To regulate the water pressure

• To indicate the water level

Which component is used to isolate the water supply in an Unvented Hot Water Storage System?

• Pressure relief valve

• In-line strainer

• Isolation valve

• Tundish

What is the role of the single check valve in an Unvented Hot Water Storage System?

• To maintain a specific water temperature

• To filter out debris from the water

• To isolate the water supply

• To prevent backflow of water

How many groups of controls are there for unvented hot water storage systems?

• One

• Two

• Three

• Four

Which of the following is a group of controls for unvented hot water storage systems?

• Electrical controls

• Safety controls

• Pressure controls

• Temperature controls

What is the other group of controls for unvented hot water storage systems apart from safety controls?

• Operational controls

• Functional controls

• Maintenance controls

• Efficiency controls

At what temperature does water boil at atmospheric pressure?

• 90°C

• 100°C

• 110°C

• 120°C

What state does water change into when it boils at atmospheric pressure?

• Solid

• Liquid

• Gas (steam)

• Plasma