ch 2

What grade of copper is used in  domestic heating systems and is soft coiled microbore pipe?

• R500
• R220
• R20000
• R750

What grade of copper used in domestic heating systems is half hard straight lengths?

• Super grade
• R250
• 1st grade
• R220

Which of the following is not micro bore pipe?

• 6mm
• 10mm
• 22mm
• 8mm

What type of pipe is this?

• R250
• Half hard
• Micro bore
• MDPE

Low Carbon Steel pipe work is usually used in?

• Domestic installations
• Extensions
• Under floor heating
• Commercial and industrial installations

If LCS pipe work is used for heating systems,  what must it have to prevent corrosion.

• Cleanser
• Inhibitor
• Insulation
• Lagging

What type of plastic pipe can be used for central heating systems?

• MDPE
• Thermosetting Plastic
• Polyvinyl
• Polybutylene

Polybutylene has a barrier that is?

• Impermeable
• Rubber
• Metal
• Permeable

What type of pie is this?

• MDPE
• LCS
• Polybutylene
• Bakelite

The internal bore of this pipe is very smooth allowing for good flow rate. What type of pipe is this?

• Copper
• LCS
• Polybutylene
• Lead