1) half hard straight lengths of copper is? a) R220 b) R290 c) R250 2) Blue coloured coating on a pipe is for? a) general purpose b) Gas c) Water d) Wholesome water 3) what colour pipe is light density LCS normally used for Gas  a) b) c) 4) LCS is made from 99.85% iron and 0.15% carbon, manufactured to BS1387 1984 a) True b) False 5) When bending LCS, it stretches in both directions? a) False b) True 6) what grade of plastic pipe is generally used for hot, cold and central heating a) PVCu b) Polybutylene c) ABS d) MDPE 7) This plastic is used for push fit and solvent welded soil, waste pipes, overflow pipes, guttering and below ground drainage. a) Polypropylene b) HDPE c) MDPE d) PCVu 8) Non-manipulative fitting is a a) end feed b) compression 9) Modern brass fittings can be marked, which means they are dezincification resistant, what us the mark? a) ZINC b) DZR c) ALLOY d) CZ 10) What fitting can be used to attach copper or plastic to an existing lead pipe? a) flange b) Union c) lead lock d) lead connector 11) A fitting that has a flat face and uses either a rubber or fibre gasket to create a watertight seal. a) Flange b) compression c) leadlock d) connector 12) what product is applied to an internal fitting and the external of a ABS pipe, to help the material chemically melt together  a) solder b) loctite c) solvent weld 13) Equipotential, supplementary, temporary are all types of what? a) solvents b) Plastic pipework c) pipe d) earth bonding 14) 110v on site electrical equipment should be PAT tested every? a) 24 months b) 12 months c) 3 months d) 6 months 15) Pozi a) b) c) d) 16) high moisture areas – corrosion resistant. In/outside use. Expensive, long lifespan. Concealed bathroom use. a) chrome b) brass c) stainless steel 17) wall plug size 6mm are coloured a) b) c) d) 18) school board clip a) b) c) d) 19) horizontal clipping distance for 15mm copper is? a) 1.8m b) 2.4m c) 1.6m d) 1.2m 20) All pipework going through a masonry fabric must be sleeved to allow for movement. The sleeve is generally made of the same tube, but a size larger a) true b) false 21) what can be used when replacing a floor board that couldn't be cut in the middle of a joist. a) groove b) tongue c) cleat d) noggin 22) stop valve a) b) c) d) 23) radiator valve a) b) c) d)

8202-25 Processes (32Q's)

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