Theoretical volume of oxygen required for complete combustion of 1Nm of acetylene, in oxy-acetylene welding is __________ Nm .

Theoretical volume of oxygen required for complete combustion of 1Nm

1.	Theoretical volume of oxygen required for complete combustion of 1Nm of acetylene, in oxy-acetylene welding is __________ Nm .
A.	0.5
B.	1
C.	2
D.	2.5
Answer» E.

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Theoretical volume of oxygen required for complete combustion of 1Nm of acetylene, in oxy-acetylene welding is __________ Nm .

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