You are operating a 16-cylinder diesel...

Study

Question 1 of 205eccefa3bacbc34ba4d47e00

You are operating a 16-cylinder diesel engine at 75% load, turning 900 RPM. All exhaust temperatures are between 900°F and 950°F, except the #3 cylinder, with an indicated reading of 750°F. All fuel rack settings are between 21 and 22 millimeters, with the exception of a 17 millimeter setting for the #3 cylinder. Which of the following corrections should be carried out?

Back

Question 1 of 20

5eccefa3bacbc34ba4d47e00

No comments yet

Be the first to share your thoughts!

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

🔍 Key Concepts

• Relationship between exhaust temperature and fuel quantity/rack setting on a diesel cylinder • How an under-fueled cylinder behaves compared to an over-fueled cylinder (power, temperature, smoke) • When it is appropriate to make an adjustment under load and monitor, versus stopping the engine for mechanical work

💭 Think About

• Compare the #3 cylinder’s exhaust temperature to the others and ask: does a lower temperature mean too much fuel or too little fuel? • Look at the #3 rack setting (17 mm vs. 21–22 mm) and think about what that means for the amount of fuel injected and resulting cylinder power output. • Ask yourself: which option best corrects an obvious misadjustment while keeping the engine safely running and letting you observe the effect of your change?

✅ Before You Answer

• Confirm whether lower exhaust temperature on one cylinder with a smaller rack setting usually indicates under-fueling, not a bad nozzle or advanced timing. • Verify that the engine is already at a steady, normal load (75%), so light adjustments to a single cylinder can be made and observed. • Check which option allows a controlled correction (small change, then monitor temperature) instead of immediately performing major maintenance under way.

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

Quick actions

— No credit card needed