46 CFR directs the location of fuel oil sounding tubes and access openings for fuel oil tanks on cargo vessels. Where can the tubes be located?
• 46 CFR requirements for fuel oil tanks, vents, and sounding tubes on cargo vessels • Difference between accommodation spaces (where people live/relax) and cargo/working spaces • Safety concerns with fuel vapors, ignition sources, and routes for fumes to enter occupied areas
• Which of these locations would most increase the risk of fuel vapors entering spaces where crew regularly spend off‑duty time? • Among the choices, which space is most closely associated with the cargo system and least like an accommodation or service space? • Think about where regulations try to keep fuel and where they try to keep people—which option best separates the two?
• Verify which of these are considered accommodation or service spaces versus cargo/working spaces under 46 CFR • Consider where fuel vapors must NOT be allowed to accumulate (places with people, heat, or open flames) • Check that the selected space would reasonably be associated with tank access or cargo-related structures, not comfort or hygiene areas
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