When taking on fuel it is important to...

Question 1 / 205eccef9ebacbc34ba4d46621

Question 1 of 205eccef9ebacbc34ba4d46621

When taking on fuel it is important to remember that petroleum vapors are __________.

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Question 1 of 20

5eccef9ebacbc34ba4d46621

When taking on fuel it is important to remember that petroleum vapors are __________.

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🔍 Key Concepts

• Behavior of petroleum vapors in air (heavier vs lighter than air) • Where vapors can accumulate on a vessel during fueling • Basic fire and explosion triangle (fuel, oxygen, ignition source)

💭 Think About

• Think about what happens to fuel vapors in low, enclosed spaces like bilges, lockers, and lazarettes. • Consider whether vapors from gasoline or diesel will rise and disappear or sink and spread along the deck. • Ask yourself: during fuel spills, where does the greatest explosion risk usually occur—up high in the air or down low in enclosed spaces?

✅ Before You Answer

• Verify whether petroleum vapors are heavier or lighter than air. • Consider where you are trained to ventilate and test for vapors before starting engines (high spaces vs low spaces). • Check which option best explains why we avoid sparks, switches, and starting engines until we’ve checked for vapors in the bilge and enclosed low areas.

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Question 1 of 20

When taking on fuel it is important to remember that petroleum vapors are __________.

not volatile unless the ambient air temperature exceeds 90°F

lighter than air and dissipate rapidly

unlikely to ignite except in the presence of an open flame

heavier than air and may enter the bilges and/or deckhouse

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Question 1 / 205eccef9ebacbc34ba4d46621

Question 1 of 205eccef9ebacbc34ba4d46621

When taking on fuel it is important to remember that petroleum vapors are __________.

Back

Question 1 of 20

5eccef9ebacbc34ba4d46621

When taking on fuel it is important to remember that petroleum vapors are __________.

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