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A - Who can certify an LPG installation which is supplied from two 45kg cylinders? Give TWO answers.
1.
2.
2 marks
B - Identify the TWO main constituents of LPG
1.
2.
1 mark
C - State the air/gas rations for
(i) Propane
(ii) Natural Gas
2 marks
D - Name 2 inert gases present in New Zealand natural gas.
1.
2.
1 mark
E - State the flammability limits for LPG.
2 marks
F - (i) Why do flueless gas space heaters sometimes cause condensation?
(ii) What can be done to minimise the problem?
2 marks
Total 10 marks