When the normal compression ratio of a...

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Question 1 of 205eccefa3bacbc34ba4d47de0

When the normal compression ratio of a diesel engine is not very high, misfiring at light loads may be caused by __________.

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Question 1 of 20

5eccefa3bacbc34ba4d47de0

When the normal compression ratio of a diesel engine is not very high, misfiring at light loads may be caused by __________.

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🔍 Key Concepts

• Diesel combustion requirements: temperature, pressure, and air-fuel mixture for self‑ignition • Effect of compression ratio on temperature at the end of the compression stroke • How cooling and valve operation/clearance affect cylinder temperature and compression pressure

💭 Think About

• If the compression ratio is already on the low side, what engine condition would further reduce the final air temperature in the cylinder at light loads? • Which options would tend to make ignition easier (higher temperature/pressure) versus harder (lower temperature/pressure)? • At light loads, how is the amount of heat generated in the cylinder different from full load, and which condition would have the biggest impact on causing misfire?

✅ Before You Answer

• Identify which choice would lower the air temperature at the end of compression when the load is light • Eliminate any options that would normally tend to increase cylinder pressure and temperature • Think about which condition would be most critical when the compression ratio is already not very high (marginal for ignition)

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Question 1 of 205eccefa3bacbc34ba4d47de0

When the normal compression ratio of a diesel engine is not very high, misfiring at light loads may be caused by __________.

Back

Question 1 of 20

5eccefa3bacbc34ba4d47de0

When the normal compression ratio of a diesel engine is not very high, misfiring at light loads may be caused by __________.

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