In general, the limit of inflammability/explosion limit of fuel gases – McqOptions

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1.	In general, the limit of inflammability/explosion limit of fuel gases is widened by the__________________?
A.	Increase in gas pressure
B.	Increase in temperature (i.e. preheating)
C.	Use of pure oxygen for combustion instead of air
D.	All A., B. & C.
Answer» E.

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