Cold Water cold water 2.3

What are the two key factors that determine the selection of a cold water system?

• Temperature and pressure

• Pressure and flow rate

• Flow rate and temperature

• Temperature and volume

In domestic situations, what type of check is normally sufficient for pressure?

• Digital check

• Manual check

• Visual check

• Mechanical check

When installing certain appliances, a more accurate pressure reading needs to be taken for which of the following?

• Water softeners

• Combination boilers

• Unvented cylinders

• All of the above

Pressure is measured in which unit?

• Pascal

• PSI

• Bar

• Newton

In a domestic situation, what tool can be used to check the flow rate of water?

• A thermometer

• A pressure gauge

• A flow cup or weir cup

• A hygrometer

What is the equivalent of 60 litres per minute in litres per second?

• 0.1 l/sec

• 1 l/sec

• 10 l/sec

• 0.01 l/sec

Which of the following factors can affect pressure and flow in plumbing?

• Daily demand (peak periods)

• Color of the pipes

• Type of flooring

• Number of windows

Which factor related to the size of pipes can affect pressure and flow?

• Installation pipe size

• Color of the pipes

• Type of flooring

• Number of windows

What type of pressure is used in a direct cold water system?

• Low pressure

• Medium pressure

• High pressure

• Variable pressure

What is the only stored water used for in a direct cold water system

• Cold water system

• Hot water system

• Drinking water system

• Irrigation system