Which operating parameter may need to be...

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Question 1 of 205eccefa2bacbc34ba4d47a23

Which operating parameter may need to be decreased when running a large main propulsion diesel engine at low load conditions?

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5eccefa2bacbc34ba4d47a23

Which operating parameter may need to be decreased when running a large main propulsion diesel engine at low load conditions?

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🔍 Key Concepts

• Effect of low engine load on large slow-speed and medium-speed diesel engines • Relationship between aftercooler temperature, air density, and combustion at low loads • Which systems (fuel injection, cooling water, lube oil, control air) are usually designed to stay within fairly narrow ranges

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• At low load, does the engine generally need warmer or cooler intake air to maintain good combustion and avoid fouling? • Which listed parameter, if kept too high at low load, can lead to incomplete combustion, smoke, and fouling rather than helping performance? • Think about which systems are usually kept as constant as possible for reliable operation versus which are sometimes adjusted with engine load.

✅ Before You Answer

• Identify which parameter directly affects intake air temperature and density before it enters the cylinders • Recall that fuel injection pressure and control air pressure are commonly maintained within tight design limits and not routinely reduced at low load • Consider that very low lube oil temperature is generally undesirable due to viscosity and lubrication concerns

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Question 1 of 205eccefa2bacbc34ba4d47a23

Which operating parameter may need to be decreased when running a large main propulsion diesel engine at low load conditions?

Back

Question 1 of 20

5eccefa2bacbc34ba4d47a23

Which operating parameter may need to be decreased when running a large main propulsion diesel engine at low load conditions?

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

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