Objectives - Cold Water System Requirements

By the end of the session, learners will be able to: ________ (Fill in the blank with the session objective)

• calculate cold water system requirements used in dwellings.

• identify different types of electrical wiring systems.

• describe the process of painting interior walls.

• explain the principles of air conditioning systems.

Modern plumbing systems have seen an increase in the use of direct cold water systems, whereby all the outlets within the building are supplied with water directly from a ________ supply. (Fill in the blank)

• water undertaker’s

• rainwater

• well

• storage tank

Why is the use of cold water storage cisterns sometimes unavoidable?

• Because they are cheaper

• Because the mains pressure is low

• Because they are easier to install

• Because they look better

Storing cold water has the advantage of a reserve supply of water being available should the ________ be isolated for any period of time.

• mains

• pipes

• valves

• tanks

According to the calculation of system capacity, what is the recommended storage capacity for cisterns supplying cold water outlets only in small dwellings?

• 50 litres to 100 litres

• 100 litres to 150 litres

• 200 litres to 300 litres

• 80 litres per person

According to the calculation of system capacity, what is the recommended storage capacity for cisterns supplying hot and cold water outlets in small dwellings?

• 100 litres to 150 litres

• 80 litres per person

• 200 litres to 300 litres

• 130 litres

According to British Standard 6700, what is the minimum recommended storage capacity for systems supplying cold water to both cold and hot water systems in domestic dwellings?

• 100 litres

• 150 litres

• 230 litres

• 300 litres

For large dwellings, what is the recommended storage capacity per person?

• 100 litres

• 80 litres

• 200 litres

• 230 litres

For large dwellings, what is the recommended storage capacity where the cistern fills only at night?

• 80 litres

• 100 litres

• 130 litres

• 230 litres

In large dwellings, the amount of cold water storage for supplying cold water to a hot water storage vessel should equal the storage capacity of the hot water storage vessel.

• True

• False