Diesel engine 'blow-by' into the crankcase...

Question 1 / 205eccefa1bacbc34ba4d4757a

Question 1 of 205eccefa1bacbc34ba4d4757a

Diesel engine 'blow-by' into the crankcase is caused by excessive ring __________.

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Question 1 of 20

5eccefa1bacbc34ba4d4757a

Diesel engine 'blow-by' into the crankcase is caused by excessive ring __________.

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🔍 Key Concepts

• Blow-by in a diesel engine means combustion gases leaking past the piston into the crankcase • Ring clearances control how well piston rings seal against the cylinder wall and in their grooves • Think about which type of clearance would most directly affect how tightly the ring seals around the circumference of the cylinder

💭 Think About

• Which ring clearance would most affect the ability of combustion pressure to escape between the ends of the ring vs. between the ring and its groove? • How does excessive clearance in the ring groove (up/down or in/out) compare with excessive clearance at the ring ends for allowing gas to pass into the crankcase? • Visualize the ring in the cylinder: if it wears in one particular dimension, where would hot gases most easily find a path around it?

✅ Before You Answer

• Identify which option refers to the clearance between ring ends rather than between the ring and the groove surfaces • Confirm which type of clearance change would open a continuous path for gases all the way around the piston • Eliminate any clearances that mainly affect ring stability or movement in the groove but not the basic circumferential seal against the cylinder wall

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Question 1 of 20

Diesel engine 'blow-by' into the crankcase is caused by excessive ring __________.

back clearance

side clearance

gap clearance

taper clearance

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Question 1 / 205eccefa1bacbc34ba4d4757a

Question 1 of 205eccefa1bacbc34ba4d4757a

Diesel engine 'blow-by' into the crankcase is caused by excessive ring __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d4757a

Diesel engine 'blow-by' into the crankcase is caused by excessive ring __________.

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

👋 Hi! I'm Genie, your AI study assistant. How can I help you with this question?

Quick actions

— No credit card needed