QUESTION 1
(a) State THREE reasons for fitting a down-draught diverter.
 1
 2
 3
(3 marks)

(b) What is a secondary flue pipe?
(2 marks)

(c) Name the dangerous gas produced when there is incomplete combustion of the fuel gas.
(1 mark)

(d) List SIX materials that are acceptable for manufacturing flue pipes.
 1
 2
 3
 4
 5
 6
(3 marks)

(e)  State the minimum distance permitted from a 100 mm diameter flue without a flue liner to any
combustible material.
(1 mark)

(f) What is required to be fitted to the top of a flue pipe?
(1 mark)
Total 11 marks

Linkback: https://www.plumbers.nz/gas-exam-2006/20/question-1/153/