What device isolates cargo tank vapor space while maintaining pressure control?
Direct Answer
Option C: Pressure/Vacuum (P/V) breaker or P/V valves
Pressure/Vacuum (P/V) valves and breakers isolate the cargo tank vapor space while automatically relieving excess pressure or vacuum. Governed by SOLAS and ISGOTT, they prevent structural damage to tanks during normal operations and thermal variations.
All Options
Detailed Explanation & Context
Pressure/Vacuum (P/V) valves and breakers isolate the cargo tank vapor space while automatically relieving excess pressure or vacuum. Governed by SOLAS and ISGOTT, they prevent structural damage to tanks during normal operations and thermal variations.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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