Cold Water Systems Quiz L3p2U5,2.5:1

What is the purpose of an effective inlet control device in a cistern?

• To maintain the correct water level

• To prevent contamination

• To provide insulation against freezing

• To allow for maintenance and repair activities

What should be included in a cistern to prevent stagnation?

• An arrangement of pipework to allow water circulation

• Insulation against freezing or undue warming

• Service valves on inlet and outlet pipework connections

• Screened warning/overflow pipes

Why should cisterns be positioned over a load bearing wall?

• To eliminate the risk of leaks

• To spread the load across the roof trusses

• To allow for maintenance and cleaning

• To prevent contamination

What is the minimum access requirement for cleaning and maintenance of cisterns?

• 150mm above the cistern

• 350mm above the cistern

• 1000mm above the cistern

• 500mm above the cistern

What type of float operated valve should be fitted in a cistern?

• BS1212 Part 1

• BS1212 Part 4

• BS1212 Part 2

• BS1212 Part 3

Why should the cold distribution pipe be taken from the bottom of the cistern?

• To prevent sediment build up

• To ensure rapid turnover of water

• To prevent scalding

• To allow for adjustment of water level

Where should the highest outlet be fitted in a cistern with two outlets?

• On the opposite side to the inlet connection

• On the same side as the inlet connection

• On the opposite side to the float operated valve

• On the same side as the float operated valve

How should cisterns be interconnected to prevent stagnation?

• In series

• In parallel

• In a circular pattern

• In a random configuration

What must be done to prevent stratification in cisterns?

• Keeping cistern capacities to a minimum

• Installation in accordance with regulations

• Regular inspection and cleaning

• Use of delayed action float operated valves

What should be done with the overflow pipes of interconnected cisterns?

• Connect them to the lowest cistern

• Connect them together

• Connect them to the highest cistern

• Place them in a visible and conspicuous position