Phase 2 Multiple Choice Test A

What temperature is 373K in the Celsius scale?

• 173ºC

• 100ºC

• -173ºC

• -200ºC

What does the symbol Δt represent?

• Difference in temperature

• Direct temperature

• Difference in pressure

• Direct pressure

When a gas changes state into a liquid, it is known as…

• Evaporation

• Condensing

• Sublimination

• Expansion

When a liquid changes state into a gas, it is known as…

• Evaporation

• Condensing

• Sublimination

• Expansion

What is atmospheric pressure at sea level?

• 0 bar

• 1.01 bar

• 10.1 bar

• 100 bar

An RPZ valve should be installed with:

• an isolating valve upstream of the RPZ valve

• an isolating valve downstream of the RPZ valve

• an isolating valve both upstream and downstream of the RPZ valve

• no isolating valves

In which one of the following fluid categories does the domestic water from a washbasin fall?

• Category 1

• Category 2

• Category 3

• Category 4

Under Regulation 5 of the Water Regulations, the water undertaker must be informed when which one of the following operations is carried out?

• Installation of a pump drawing more than 12 litres per minute

• Installation of a bidet without an ascending spray or flexible hose

• Installation of a bath with a capacity of fewer than 230 litres

• Installation of an RPZ valve to protect against a category 2 fluid

4. 
   

 

• Expansion cistern

• Break cistern

• Duplicate pumps

• Circulating pumps

The type of non-mechanical backflow prevention used on a domestic washbasin is known as:

• AUK 1

• AUK 2

• AUK 3

• AUK 4