You are onboard a tankship during the final...

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Question 1 of 2066636ee728f7522a1c5184a4

You are onboard a tankship during the final stages of loading number two fuel oil. Regulations require that your cargo tanks have installed high level and tank overfill alarms. At what point must the high level alarm activate?

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Question 1 of 20

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🔍 Key Concepts

• 46 CFR requirements for cargo tank high-level and overfill alarms on tankships • Relationship between high-level alarm set point and overfill alarm set point • The meaning of “or lower but higher than” and “or higher but less than” when describing percentages

💭 Think About

• Which alarm (high-level vs overfill) should activate first as the tank fills, and why from a safety standpoint? • Look at each choice: does the percentage for the high-level alarm make sense as an early warning before the more critical overfill alarm? • Compare the language in the choices to how the CFR usually phrases limits: does it allow the alarm to be set at or below a value, or at or above a value?

✅ Before You Answer

• Verify in 46 CFR that the high-level alarm must activate at a certain maximum percentage of tank capacity, not exceeding a stated value. • Check that the overfill alarm is required to activate at a level higher than the high-level alarm but still before actual overflow. • Confirm that the correct wording will ensure the high-level alarm gives the crew enough time to stop loading before the overfill point is reached.

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