Efficiency of the combustion of a fuel is judged by the __________ the – McqOptions

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1.	Efficiency of the combustion of a fuel is judged by the __________ the flue gas.%!
A.	%of CO‚Äö√á√á in
B.	% of O‚Äö√á√áin
C.	Temperature of
D.	Colour of
Answer» C. Temperature of

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