Plumbing level 2 - PP2.2 - Drainage

What is the first important inspection in the soundness test?

• Pressure test

• Hydraulic test

• Visual inspection

• Smoke test

What should be done if the pipework is below floor level?

• Test during the floor installation

• Test before the floor is put down

• Test after the floor is put down

• No need to test

What is the maximum pressure the system can be put under during the soundness test?

• 75mm

• 50mm

• 38mm

• 25mm

What is used to trace a potential leak during the soundness test?

• Air

• Water

• Smoke

• Soapy water

What is the minimum trap seal depth required after the performance test?

• 20mm

• 25mm

• 10mm

• 15mm

What should be used to check the trap seal depth?

• A matt black dipstick

• A ruler

• A measuring tape

• A pressure gauge

What is a common cause of blockages in kitchen sink traps?

• Hair

• Tree roots

• Soap residue

• Grease

What should be worn when using cleaning chemicals?

• Only rubber gloves

• Only eye protection

• Rubber gloves and eye protection

• No protection needed

What tool is used to release small blockages using positive pressure?

• Hand auger

• Plunger

• Drain rod

• Drop scraper

What is the first tool to be used when locating a blockage in a manhole?

• Drop scraper

• Plunger

• Double screw

• Drain rod wheel