Mist detectors used on large low-speed and...

Question 1 / 270705eccefa1bacbc34ba4d47466

Question 1 of 270705eccefa1bacbc34ba4d47466

Mist detectors used on large low-speed and medium speed main propulsion diesel engines monitor and check for the presence of __________.

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Question 1 of 27070

Mist detectors used on large low-speed and medium speed main propulsion diesel engines monitor and check for the presence of __________.

🔍 Key Concepts

• Purpose of mist (oil mist) detectors on large slow- and medium-speed diesel engines • What crankcase explosions are and what causes them • Typical locations on an engine where oil mist can form and be dangerous

💭 Think About

• Think about where an explosive mist could form inside a large diesel engine if a bearing overheats or a hot spot develops • Ask yourself which of the listed locations is directly associated with crankcase explosion protection systems • Consider which choice matches standard SOLAS/engine-room safety requirements for large low- and medium-speed main propulsion diesels

✅ Before You Answer

• Identify which answer choice is located inside the engine rather than in external spaces or tanks • Verify which area is directly connected to bearings, connecting rods, and the engine sump (where lubricating oil is present as a spray or fog) • Confirm which monitored area, if it contains oil mist, would pose an immediate risk of crankcase explosion on large main propulsion engines

Question 1 of 27070

Mist detectors used on large low-speed and medium speed main propulsion diesel engines monitor and check for the presence of __________.

fuel oil vapor at the sludge tank vent

unburned fuel vapors in the scavenge air receiver

lube oil vapors in the crank case

lube oil vapors in the engine room

Question 1 / 270705eccefa1bacbc34ba4d47466

Question 1 of 270705eccefa1bacbc34ba4d47466

Mist detectors used on large low-speed and medium speed main propulsion diesel engines monitor and check for the presence of __________.

Back

Question 1 of 27070

Mist detectors used on large low-speed and medium speed main propulsion diesel engines monitor and check for the presence of __________.