Worksheets215 ppt5 Types of Shower Mixer Valves
Total questions: 13
Worksheet time: 7mins
What are the three types of shower mixer valves mentioned in the document?
Gravity mixer, Mains-fed/boosted mixer, Electric instantaneous
Pressure mixer, Manual mixer, Digital mixer
Thermostatic mixer, Manual mixer, Electric mixer
Gravity mixer, Pressure mixer, Digital mixer
What type of system does a cistern-fed/gravity mixer rely on for pressure?
High-pressure system
The head height of the CWSC
Medium-pressure system
Variable-pressure system
What is the safest valve to use in a cistern-fed/gravity mixer?
Pressure relief valve
Ball valve
Thermostatic valve
Check valve
What does the sensing device in a thermostatic valve do?
Heats the water
Expands and contracts
Filters the water
Changes water color
What is the relationship between shower head location and water level in a negative head system?
Shower head height is above or within 1m of the height of the CWSC
Shower head height is 3m below the height of the CWSC
Shower head height is in a different building to the CWSC
Shower head height is not related to the height of the CWSC water level
What type of pump is required if the flowrate is insufficient?
Positive head pump
Negative head pump
bicycle pump
Submersible pump
What is the key component that causes the pump to operate in positive head showers?
Flow switch
Pressure valve
Thermostat
Pump
Which shower system is most suitable for homes with a high water tank?
Positive head showers
Negative head showers
Electric showers
Mixer showers
In what situations can negative head pumps be used?
Positive-head, negative-head, and whole-house
Only positive-head
Only negative-head
Only whole-house
What is the starting point of a negative head in relation to the CWSC?
600mm below
600mm above
300mm below
300mm above
What is the main advantage of negative head pumps in terms of noise?
They are quieter
They are louder
They have no noise
They have variable noise levels
What type of situations do negative head pumps not require?
Natural head or flow of water
High pressure
Low temperature
Large volume
Where is the instantaneous electric shower fed from?
Cold water tank
Incoming main
Hot water cylinder
Rainwater collection system
