Deficiency of combustion air during combustion of a gaseous fuel – McqOptions

MCQOPTIONS

1.	Deficiency of combustion air during combustion of a gaseous fuel
A.	lengthens the flame.
B.	causes heat loss of fuel by its partial combustion.
C.	both (a) & (b).
D.	shortens the flame.
Answer» D. shortens the flame.

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