Plumbing level 2 - PP4 - Hot water

Which type of shower mixer valve compensates for temperature fluctuations?

• Pressure balancing mixer valve

• Bath/shower mixer tap

• Thermostatic mixer valve

• Manual shower mixer valve

What is the minimum head required from the base of the CWSC to the outlet of the shower rose in a cistern fed shower?

• 1.5 metres

• 0.5 metres

• 1 metre

• 2 metres

Which type of pump is used to increase pressure for both hot and cold feed in a cistern fed system?

• Positive head pump

• Negative head pump

• Twin impellor booster pump

• Single impellor booster pump

What is the maximum temperature a pump can cope with?

• 70°C

• 65°C

• 60°C

• 55°C

What type of system does not require a pump as both hot and cold are fed from the mains?

• Cistern fed shower

• Unbalanced fed shower

• Mains fed hot and cold shower

• Cistern fed with booster pump shower

Which type of pump is also known as a regenerative pump?

• Single impellor booster pump

• Twin impellor booster pump

• Negative head pump

• Positive head pump

What is required to prevent backflow in a mains fed shower?

• Pressure reducing valve

• Single check valve

• Thermostatic valve

• Double check valve

Which type of shower is fed directly off the incoming mains and heated via an electric element?

• Cistern fed shower

• Instantaneous electric shower

• Mains fed hot and cold shower

• Unbalanced fed shower

What type of pump is activated by a magnetic flow switch?

• Twin impellor booster pump

• Negative head pump

• Positive head pump

• Single impellor booster pump

What is the safest valve to use in a cistern fed shower?

• Bath/shower mixer tap

• Pressure balancing mixer valve

• Thermostatic mixer valve

• Manual shower mixer valve