While underway on a slow-speed propulsion...

Question 1 / 2066636eef28f7522a1c52043e

Question 1 of 2066636eef28f7522a1c52043e

While underway on a slow-speed propulsion diesel, the duty engineer is alerted to a high scavenging air temperature at one cylinder. Which of the following could be a possible cause?

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Question 1 of 20

66636eef28f7522a1c52043e

While underway on a slow-speed propulsion diesel, the duty engineer is alerted to a high scavenging air temperature at one cylinder. Which of the following could be a possible cause?

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🔍 Key Concepts

• Scavenging air system operation and where temperature is measured • How combustion problems at one cylinder can affect scavenging air temperature locally • Difference between system-wide faults (common to all cylinders) and a fault at a single unit

💭 Think About

• Ask yourself: if only ONE cylinder shows high scavenging air temperature, which problems would likely affect just that unit, not the whole engine? • Which options would normally cause a rise in temperature for ALL cylinders sharing the same air supply rather than just one? • How might hot combustion gases get into the scavenging space and raise its temperature locally?

✅ Before You Answer

• Check which options involve a common component (turbocharger, coolers) supplying all cylinders versus a local component (valves, piston area) at a single cylinder. • Verify whether a scavenge air box fire is a cause or a consequence of high temperature and poor combustion conditions. • Consider whether loss of after-cooler or scavenging cooler efficiency would realistically affect just one cylinder or the whole bank.

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Question 1 of 20

While underway on a slow-speed propulsion diesel, the duty engineer is alerted to a high scavenging air temperature at one cylinder. Which of the following could be a possible cause?

Exhaust valve leakage due to a burned seat.

Scavenging air box fire at the piston underside.

No water flow to the turbocharger after cooler.

Blocked scavenging air cooler.

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Question 1 / 2066636eef28f7522a1c52043e

Question 1 of 2066636eef28f7522a1c52043e

While underway on a slow-speed propulsion diesel, the duty engineer is alerted to a high scavenging air temperature at one cylinder. Which of the following could be a possible cause?

Back

Question 1 of 20

66636eef28f7522a1c52043e

While underway on a slow-speed propulsion diesel, the duty engineer is alerted to a high scavenging air temperature at one cylinder. Which of the following could be a possible cause?

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