The pressure in an operating diesel engine...

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Question 1 of 205eccefa1bacbc34ba4d47410

The pressure in an operating diesel engine cylinder continues to rise for a short period after the piston passes top dead center as a result of the __________.

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5eccefa1bacbc34ba4d47410

The pressure in an operating diesel engine cylinder continues to rise for a short period after the piston passes top dead center as a result of the __________.

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🔍 Key Concepts

• diesel engine four-stroke cycle and when combustion actually occurs relative to top dead center (TDC) • difference between compression pressure and combustion pressure rise • role and timing of fuel injection and burning period in a diesel cylinder

💭 Think About

• Think about what is happening just AFTER the piston passes TDC on the power stroke in a diesel: what process is still going on that could continue to increase pressure? • Ask yourself: is the pressure rise after TDC mainly due to compression, or due to fuel still burning and releasing heat? • Which choice correctly connects the timing of fuel injection, combustion, and valve positions with a continued increase in cylinder pressure after TDC?

✅ Before You Answer

• Confirm at what crank angle range maximum compression pressure occurs in a typical diesel engine (before, at, or after TDC?). • Verify when the exhaust and intake valves are actually open or closed in relation to TDC on the power and intake strokes. • Check which option directly explains why HEAT ADDITION from burning fuel could still be happening just after TDC, causing pressure to continue to rise.

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Study

Question 1 of 205eccefa1bacbc34ba4d47410

The pressure in an operating diesel engine cylinder continues to rise for a short period after the piston passes top dead center as a result of the __________.

Back

Question 1 of 20

5eccefa1bacbc34ba4d47410

The pressure in an operating diesel engine cylinder continues to rise for a short period after the piston passes top dead center as a result of 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