Hot Water PowerPoint 3 Quiz

What is the primary function of the coil in an indirect hot water cylinder?

• To cool the water

• To heat the water

• To filter the water

• To store the water

What does the S Plan system typically control?

• Only hot water

• Only heating

• Both heating and hot water with separate valves

• Only cooling

Which system is more flexible in terms of adding zones?

• Y Plan

• S Plan

• Z Plan

• X Plan

What is the primary purpose of an immersion heater?

• To cool water

• To heat water

• To filter water

• To store water

What colour would an expansion vessel be for potable water?

• Orange

• White

• Red

• Brown

What is the valve called, controlling the temperature of water? Commonly used in care homes and public spaces.

• Ball Valve

• Gate Valve

• Blending Valve

• Basin Valve

At what temperature would legionella be killed off?

• 47 degrees C

• 37 degrees C

• 67 degrees C

• 57 degrees C

Hot water cylinders can suffer from galvanic corrosion, where there are two or more dissimilar metals joined together. How can you overcome this?

• Fit a new cylinder

• Fit a drain off valve

• Fit a filter

• Fit a sacrificial anode

How is a high heat recovery cylinder achieved?

• Decrease the coil size

• Increase the storage tank

• Increase the coil size

• Decrease the storage tank

Which system would you fit an expansion vessel on?

• Sealed system

• Open system