The silencer of an internal combustion engine:

1.	The silencer of an internal combustion engine:
A.	Reduces noise
B.	Decreases brake specific fuel consumption (BSFC)
C.	Increases BSFC
D.	Has no effect on its efficiency
Answer» B. Decreases brake specific fuel consumption (BSFC)

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The silencer of an internal combustion engine:

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