According to U.S. regulations, what is...

🔍 Key Concepts

• 46 CFR requirements for cargo pump room and bulkhead penetrations on tank vessels • Purpose of gastight glands where rotating shafts pass through bulkheads that separate gas-dangerous from gas-safe spaces • Difference between design/installation requirements vs. operational/ventilation procedures

💭 Think About

• Which option describes a design/installation feature of the bulkhead penetration itself, rather than an operating procedure or instrumentation? • For a shaft piercing a bulkhead on a tanker, what is the main safety concern: removing vapors from a space, monitoring pressure, moving cargo, or preventing vapors from leaking through? • Which choice focuses on ensuring the bulkhead remains gas-tight even with a rotating shaft passing through it?

✅ Before You Answer

• Identify which answer talks about a structural feature that directly makes the penetration gastight • Eliminate any choices that describe how cargo is moved rather than how the bulkhead is sealed • Eliminate any options that are about monitoring or ventilation only, not about providing an actual gastight seal at the shaft penetration

According to U.S. regulations, what is required where cargo pump shafts on tankers pierce bulkheads?

the glands are to be kept under continuous suction with power ventilation

a pressure gauge or manometer shall be installed on the bulkhead to ensure the gastight seal is maintained

compressed air shall be used as the primary means to discharge cargo

readily accessible gastight glands shall be provided

🔍 Key Concepts

💭 Think About

✅ Before You Answer