Plumbing Quiz Phase 3 C&G - CW. HW, Sanitation & Rainwater Recap

How can the cold water supply pressure to a property be identified?

• By contacting the local council or using a weir gauge at the kitchen sink

• By contacting the local council or using a pressure gauge at the supply to the FOV

• By contacting the water undertaker or using a pressure gauge at the cistern-fed outlets

• By contacting the water undertaker or using a pressure gauge at the kitchen sink

What term is given to the length of pipe when all fittings and components are considered during pipe sizing?

• Equivalent length

• Actual length

• Mean length

• Velocity length

What is the recommended storage capacity of a CWSC supplying cold and hot water to a house?

• 100 litres minimum

• 150 litres minimum

• 230 litres minimum

• 350 litres minimum

Which of the following factors would not directly affect the pressure and flow rates of pipework?

• Pipe diameter

• Pipe material

• Number of bends

• pH level of the water supply

A boosted cold water system is fitted with a break cistern at low level and a storage cistern at high level. The pump seems to have seized after 'running dry' for some time. What control component within the system is most likely to have failed and allowed this to happen?

• Float operated valve within the storage cistern

• Float operated level shut-off switch within the storage cistern

• Float operated valve within the break cistern

• Float operated low level shut-off switch within the break cistern

How often should a CWSC be checked for contamination and general condition within an apartment block?

• Monthly

• Quarterly

• Half yearly

• Annually

A sentinel outlet may be described as:

• a tap at the mid-position within a system

• the taps at the furthest and closest locations to the supply

• the taps at the highest and lowest points

• A tap outlet which is operated the least frequently

What activities should be carried out on a boost cold water or shower pump?

• Maintenance activities, as directed by manufacturers' guidelines

• None – most pumps are hermetically sealed and do not require nay maintenance

• Pump seals replaced and drive shafts lubricated annually

• Impeller cleaned and pump vented half yearly

Between what temperatures does the bacteria Legionella multiply?

• 15c–35c

• 20c-25c

• 20c-45c

• 25c-35c

Identify the item shown here?

• Cylinder Stat

• Boiler Thermostat

• Immersion Heater Stat

• Room Stat