Which of the following would indicate a...

Which of the following would indicate a...

Question 1 of 270705eccefa1bacbc34ba4d47480

Which of the following would indicate a scavenging air fire in a slow-speed diesel engine?

Question 1 of 27070

Q

Which of the following would indicate a scavenging air fire in a slow-speed diesel engine?

🔍 Key Concepts

• Scavenging air space location and purpose in a slow-speed, crosshead diesel engine • Typical signs of fire in the scavenging air space versus signs of lube oil or bearing problems • Difference between local temperature rise and general engine protective alarms (oil mist, lube oil pressure)

💭 Think About

• Which of these alarms or indications is most directly connected to the air space around the cylinders where scavenge fires occur? • For each option, ask yourself: does this primarily indicate a problem with air, with lubricating oil, or with bearings/jacket water? • In a scavenge fire, what physically gets hot first: cooling water, bearings, lube oil system, or the parts exposed to the hot scavenge air?

✅ Before You Answer

• Identify which choice is specifically tied to crankcase oil mist rather than scavenge air and consider eliminating it. • Identify which choice relates to system-wide lube oil pressure rather than a localized high-temperature area. • Focus on the options that describe a local temperature rise near where scavenge air passes and compare which system (jacket water vs bearings) is more directly influenced by a scavenge space fire.