GMJ 9189 Phase 1 Unit 302 B

A black plastic cold water storage cistern is likely to be made from:

• ABS plastic

• Polybutylene

• PVCu

• Polypropylene

What plastic is this blue pipe made from?

• ABS

• MDPE

• Polybutylene

• MuPVC

What coating must LCS have to supply hot and cold water?

• Red oxide

• Black

• Galvanised

• denzotaped

Why must uncoated LCS never be used to supply hot and cold water?

• It looks unsightly in a domestic property

• It will corrode and supply rusty water to the outlets

• Its prone to attack by woodlice in damp areas

• It allows fluid category 3 and fluid category 4 water to mix.

What is the British Standard for copper?

• BSEN 806

• BSEN 1057

• BS 1066

• BS 12056

What is the melting point of copper?

• a)    100ºC

• a)   373ºC

• a)   985.6ºC

• a)   1,083ºC

Soft copper supplied in coils are which grade?

• R220

• R250

• R290

• R350

Half hard copper supplied in straight lengths are which grade?

• R220

• R250

• R290

• R350

Grade R290 Hard copper is?

• no longer used in the UK

• 8mm coiled copper

• 32mm hard lengths of copper

• designed to solder directly onto plastic pipework.

An electric power tool needs to have an in date " (a)   " test label.