Q93
The environmentally harmful blow-by gas is also harmful to the engine, because
A.
It causes the exhaust ports to become clogged, and exhaust efficiency is reduced
B.
It reacts with engine oil to form sludge, which causes engine components to wear rapidly
AnswerC.
It causes the intake ports to become clogged, and intake efficiency is reduced
D.
None of the above
Answer: Option B
Solution
Answer: Option B
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