On an opposed-piston engine, which of the...

Study

Question 1 of 205eccefa2bacbc34ba4d47aa8

On an opposed-piston engine, which of the listed operating conditions will result from increasing the lower crank lead?

Back

Question 1 of 20

5eccefa2bacbc34ba4d47aa8

On an opposed-piston engine, which of the listed operating conditions will result from increasing the lower crank lead?

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Opposed-piston two-stroke timing: relationship between upper and lower crank leads • Which ports each piston controls: exhaust vs. intake (scavenge/air) • Effect of advancing or retarding one crank on opening order and duration of ports

💭 Think About

• First, decide which piston (upper or lower) controls the exhaust ports and which controls the air intake ports on a typical opposed-piston engine diagram you’ve studied. • Think about what happens if you increase the crank lead of the lower crank: does that make the lower piston reach its port earlier or later in the cycle? • Once that piston moves earlier or later, how does this change both (1) which ports open first and (2) how long the air intake ports are uncovered during each cycle?

✅ Before You Answer

• Verify from your notes or diagrams: lower piston = which ports? exhaust or intake? • Mentally sketch a timing diagram: before and after increasing lower crank lead, and see which port opens first. • Check how changing which piston “leads” affects the time both ports are open together, which directly impacts intake duration.

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

Quick actions

— No credit card needed

Study

Question 1 of 205eccefa2bacbc34ba4d47aa8

On an opposed-piston engine, which of the listed operating conditions will result from increasing the lower crank lead?

Back

Question 1 of 20

5eccefa2bacbc34ba4d47aa8

On an opposed-piston engine, which of the listed operating conditions will result from increasing the lower crank lead?

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