In a tank vessel constructed in 1970,...

Question 1 of 31048fy_heal_CREATE_q302_2027

In a tank vessel constructed in 1970, carrying grade A, B, C, or D liquid cargo, what is required to isolate cargo pumps from sources of vapor ignition?

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Question 1 of 31048

In a tank vessel constructed in 1970, carrying grade A, B, C, or D liquid cargo, what is required to isolate cargo pumps from sources of vapor ignition?

🔍 Key Concepts

• 46 CFR requirements for tank vessels built before 1972 carrying Grade A–D flammable/combustible liquids • Purpose and definition of a cofferdam versus a gastight bulkhead • How cargo pumps and pump rooms must be separated from sources of vapor ignition (engines, accommodations, passageways)

💭 Think About

• Which of the listed options is specifically designed as a safety isolation space rather than a normal working or living space? • Between a structural barrier (bulkhead) and an empty separation space, which one is typically required by regulations to separate cargo spaces or pump rooms from ignition sources? • Ask yourself: where would flammable vapors be most dangerous if they migrated—into living spaces, general cargo spaces, or an engineered buffer space?

✅ Before You Answer

• Verify which option is defined in 46 CFR as a void or empty space used only for separation and protection, not for cargo or habitation. • Confirm which structure is explicitly mentioned in tank vessel construction rules as a means of segregating cargo pump rooms from machinery spaces or accommodation spaces. • Make sure the choice you pick is something that is not normally occupied and is intended primarily as a protective barrier.