The diameter of a piston is usually less at...

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Question 1 of 205eccefa1bacbc34ba4d4750e

The diameter of a piston is usually less at the crown than at the skirt, in order to __________.

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Question 1 of 20

5eccefa1bacbc34ba4d4750e

The diameter of a piston is usually less at the crown than at the skirt, in order to __________.

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🔍 Key Concepts

• Thermal expansion of metal components in an internal combustion engine • Temperature difference between the piston crown (top) and skirt (lower portion) during operation • Clearances between piston and cylinder liner at different operating temperatures

💭 Think About

• Think about which part of the piston gets the hottest during engine operation and how that affects its size. • Consider what might happen if the piston crown and skirt were exactly the same diameter when the engine reaches normal operating temperature. • Ask yourself which option directly relates to changes in piston size due to heat, rather than secondary effects like ring handling or vapor movement.

✅ Before You Answer

• Verify which answer choice deals with heat and expansion, not assembly convenience or gas sealing alone. • Check that the option you choose explains why the crown needs more clearance than the skirt when cold. • Make sure the reasoning connects to protecting the cylinder liner and preventing piston seizure when hot, even if that benefit is not explicitly stated in the option.

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Question 1 of 205eccefa1bacbc34ba4d4750e

The diameter of a piston is usually less at the crown than at the skirt, in order to __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d4750e

The diameter of a piston is usually less at the crown than at the skirt, in order to __________.

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