Dust content in raw blast furnace gas is about __________ gm/Nm 3 , he – McqOptions

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1.	Dust content in raw blast furnace gas is about __________ gm/Nm 3 , hence it is cleaned to the dust level of about < 10 mg /Nm 3 before use.
A.	15-30
B.	1-2
C.	70-100
D.	150-200
Answer» B. 1-2

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