1) How is plastic pressure pipe most commonly supplied? a) 3.0m or coils b) 2.0m or coils c) 4.0m or coils d) 3.0m and 6.0m 2) What is the horizontal clipping distance for 15mm plastic pipe? a) 0.8m b) 0.6m c) 0.5m d) 0.3m 3) What sizes of plastic pressure pipe is commonly used on domestic installation? a) 15mm and 20mm b) 16mm and 22mm c) 15mm and 22mm d) 15mm and 25mm 4) What is the advantage of using coils of plastic pipe? a) Less risk of Legionella  b) Stops lime scale c) Better energy efficiency d) Fewer joints means less risk of leaks. 5) What is the horizontal clipping distance for 22mm plastic pipe? a) 0.8m b) 0.6m c) 0.5m d) 0.3m 6) What fitting is this? a) Push fit coupler  b) Compression stop end c) Compression cap end d) Push fit cap end 7) Where can you use plastic pressure pipe? a) Gas, cold water and central heating systems b) Hot, cold water and central heating systems c) Cold water and sprinkler systems d) Hydraulic pressure systems 8) What is this a) Grab ring b) O ring c) Nut d) Insert 9) What is the vertical clipping distance for 22mm plastic pipe? a) 0.8m b) 0.6m c) 0.5m d) 0.3m 10) What fitting is this a) compression reducer b) Push fit tee c) compression tee d) Push fit elbow 11) What is the vertical clipping distance for 15mm plastic pipe? a) 0.8m b) 0.6m c) 0.5m d) 0.3m 12) What fitting is this a) compression reducer b) Push fit tee c) compression tee d) Push fit elbow 13) Why is the correct clipping distance important? a) To prevent lime scale, Salmonella and Typhoid b) To prevent sagging, movement and damage c) To prevent back flow, movement and damage d) To prevent sagging, movement and Legeonella 14) What fitting is this a) compression reducer b) Push fit reducer c) Push fit tap connector d) Push fit coupler 15) What forms the watertight seal on a push fit fitting a) Grab ring b) O ring c) Nut d) Insert 16) What type of clip is this a) Plastic interlocking pipe clip b) Plastic single push-in pipe clip c) Double plastic hinged clip d) Plastic nail-on clip 17) What forms the watertight seal on a compression joint a) Grab ring b) O ring c) Nut d) Olive 18) Why are inserts used with plastic pipe? a) To stop lime scale b) To stop Legionella c) To reinforce the copper pipe d) To reinforce the plastic pipe 19) What type of clip is this a) Plastic interlocking pipe clip b) Plastic single push-in pipe clip c) Double plastic hinged clip d) Plastic nail-on clip 20) What fittings can be used to join plastic pressure pipe? a) Push fit and compression b) Threaded and push fit c) Compression and soldered d) Solvent weld and push fit

Plumbing L1 Unit 110 Plastic pressure pipework

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