Plumbing level 3 powerpoint 8 G18

Question 1

Which aspect of pipe fixing can contribute to noise transmission?

Accepted Answer

Broken or missing clips and undersized pipework

Question 2

British Standard BS EN 806 (and BS 6700) and the Water Supply (Water Fittings) Regulations give the maximum length of?

Accepted Answer

A hot water pipe without a secondary circulation system being installed.

Question 3

Water supply pressures have deminished over the last 30 years because the loading on the UK water system has increased

Accepted Answer

True

Question 4

Safety relief pipework should be made from what type of material? And the outlet be located to achieve what outcome?

Accepted Answer

Safety relief pipe should be made from copper and discharge safely.

Question 5

What is the maximum length of D1 pipework?

Accepted Answer

600mm

Question 6

BS 6700 G18.3 gives advice on the insulation of hot water pipework. What does it advise regarding insulation?

Accepted Answer

Pipework within 1 metre of a cylinder installation should be insulated.

Question 7

Should you test water supply pressure prior to installing an unvented cylinder at a period of peak demand?

Accepted Answer

True

Question 8

What is the maximum height of D2 pipework?

Accepted Answer

300mm

Question 9

G18.4 states that hot water should be supplied to fittings within what time period and at what temperature?

Accepted Answer

Within 30 seconds and at 50 degrees celcius

Question 10

Is 1 bar water pressure at periods of peak demand satisfactory for the installation of a unvented cylinder?

Accepted Answer

False

Question 11

Private water supply pressures from bore holes tend to be between?

Accepted Answer

1.5 and 3 bar

Questions 11