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QUESTION 8
(a) State why it is important to ventilate a confined space when there has been a gas leak.
(2 marks)
(b) State TWO characteristics of a gas flame when the primary air is closed off.
1
2
(2 marks)
(c) State TWO reasons for odourising natural gas or liquefied petroleum gas.
1
2
(1 mark)
(d) Name the dangerous gas produced when there is incomplete combustion.
(1 mark)
(e) Name the TWO principle constituents of biogas.
1
2
(2 marks)
Total 8 marks