Cold Water Systems Quiz L2 2.4 prt 2 LO

What is the size of a bath tap connection?

• 1 inch BSPT

• ½ inch BSPT

• ¾ inch BSPT

• 1 ¼ inch BSPT

What should be provided at every WC float operated valve?

• A gate valve

• A check valve

• A service valve

• A stop valve

In relation to bidets and wash basins, what does Installation Requirement Note IRN R010 stipulate?

• Mixer taps should have reasonably balanced pressures

• Taps should have an air gap

• Taps should have a backflow prevention device

• Taps should have a pressure regulator

Which two ways can urinals be flushed?

• By a flushing cistern or manual/automatic flushing valves

• By a manual flushing valve or automatic flushing cistern

• By a flushing cistern or manual flushing valve

• By a manual flushing valve or automatic flushing valve

What fluid category should refrigerators be regarded as?

• Fluid Cat.1

• Fluid Cat.2

• Fluid Cat.3

• Fluid Cat.4

What type of backflow prevention device is usually required for multiple washing machines installed on the same installation?

• Type EA/EB backflow prevention device

• Type EC/ED backflow prevention device

• Single check valve

• Double check valve

What type of taps are often installed in wash basins?

• Combination taps with 15mm copper tails

• Combination taps with 10mm copper tails

• Single taps with ¾ inch male BSP threads

• Single taps with ½ inch male BSP threads

What is the maximum flush rate allowed for urinals using automatic flushing cisterns according to WRAS note IRN R075?

• 5 litres per hour for a single urinal bowl

• 10 litres per hour for a single urinal bowl

• 7.5 litres per hour for each 700mm of a slab urinal

• 15 litres per hour for a single urinal bowl

What type of valve is provided for maintenance, repair, and replacement of the float operated valve for WC cisterns?

• A service valve

• A stop valve

• A gate valve

• A check valve

What is the requirement for the water supply to combination taps for bidets and wash basins according to Installation Requirement Note IRN R010?

• The water supply should have a stop valve

• The water supply should have reasonably balanced pressures

• The water supply should have a check valve

• The water supply should have a pressure regulator