🔍 Key Concepts

• 46 CFR requirements for cargo gear and hoses on tank vessels • Typical working vs. test pressure for cargo hoses used with flammable/combustible liquids • Safety margin required above normal operating cargo transfer pressure

💭 Think About

• Think about the kinds of pressures normally used during cargo loading and discharging on tank vessels and what extra safety factor the regulations would require. • Compare each answer choice to what would be a realistic minimum safe pressure for a hose that might see surges or pressure spikes. • Ask yourself which value seems too low to be safe in an emergency surge and which values look more like realistic regulatory minimums on commercial tank ships.

✅ Before You Answer

• Look up the specific cargo hose pressure requirement in 46 CFR for tank vessels, not for barges or other vessel types. • Confirm whether the number refers to minimum working pressure rather than test pressure. • Make sure the psi value you choose seems reasonable for handling petroleum or chemical cargoes under pump pressure, with a safety margin for pressure surges.