The compression ratio of a diesel engine...

Question 1 / 205eccefa1bacbc34ba4d47357

Question 1 of 205eccefa1bacbc34ba4d47357

The compression ratio of a diesel engine refers to the ratio between the __________.

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Question 1 of 20

5eccefa1bacbc34ba4d47357

The compression ratio of a diesel engine refers to the ratio between the __________.

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🔍 Key Concepts

• Compression ratio in internal combustion engines • Relationship between cylinder volume when the piston is at the very top vs. the very bottom of its stroke • How compression affects air temperature and pressure before fuel injection in a diesel

💭 Think About

• Think about what physically changes inside the cylinder as the piston moves from bottom dead center (BDC) to top dead center (TDC). Which quantity is being ‘compressed’? • Which answer choices talk about volumes inside the cylinder, and which talk about dimensions or counts that don’t directly describe compression? • For a diesel engine that ignites fuel by heat of compression, what ratio best describes how much the air is squeezed before fuel is injected?

✅ Before You Answer

• Identify which option describes a ratio of volumes inside the cylinder rather than lengths, areas, or counts. • Make sure the ratio is set up between conditions at top dead center (TDC) and bottom dead center (BDC), not between unrelated engine parts. • Eliminate choices that do not clearly involve the space available for the air in the cylinder during the stroke.

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Question 1 of 20

The compression ratio of a diesel engine refers to the ratio between the __________.

piston area to connecting rod length

cylinder volumes at top dead center and at bottom dead center

engine cylinder size to piston size

the number of compression strokes for a given horsepower

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Question 1 / 205eccefa1bacbc34ba4d47357

Question 1 of 205eccefa1bacbc34ba4d47357

The compression ratio of a diesel engine refers to the ratio between the __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d47357

The compression ratio of a diesel engine refers to the ratio between the __________.

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