In a diesel engine, blow-by _________

In a diesel engine, blow-by __________.

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Question 1 of 205eccefa1bacbc34ba4d4744c

In a diesel engine, blow-by __________.

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5eccefa1bacbc34ba4d4744c

In a diesel engine, blow-by __________.

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🔍 Key Concepts

• Blow-by in a diesel engine refers to combustion gases leaking past the piston rings into the crankcase • Effect of blow-by on crankcase pressure, oil contamination, and engine breathing/venting systems • How blow-by is detected in practice (visual, smell, instruments) versus what a compression test tells you

💭 Think About

• Think about where blow-by gases actually go when they leak past the piston rings and what space they enter in the engine • If more combustion gases are entering the crankcase than normal, what happens to the pressure in that closed (or semi-closed) area? • Which of the options describes something that would be a direct, immediate result of combustion gases leaking past the rings, not an indirect or unrelated effect?

✅ Before You Answer

• Verify what space the crankcase is and how it is normally vented or relieved • Ask yourself whether exhaust back pressure is on the exhaust side or inside the crankcase • Consider whether blow-by is only detectable by a compression check, or if there are other signs (e.g., fumes or vapors coming from the crankcase breather)

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Question 1 of 205eccefa1bacbc34ba4d4744c

In a diesel engine, blow-by __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d4744c

In a diesel engine, blow-by __________.

No comments yet

Be the first to share your thoughts!

If the question has a related picture, it will appear here.

🔍 Key Concepts

💭 Think About

✅ Before You Answer

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