The inert gas is delivered to the cargo tanks by an inert gas deck main line. Find the correct labelling for the deck equipment items.
Direct Answer
Option A: 1-Cargo tank valves; 2- Pressure/Vacuum Valve; 3- Mast Riser; 4-Isolating Valve
The proper sequence for deck equipment in the IG distribution line is the cargo tank isolating valve, then the PV valve, followed by the mast riser and final isolating valves, ensuring pressure control and safety of the tank boundary.
All Options
Detailed Explanation & Context
The proper sequence for deck equipment in the IG distribution line is the cargo tank isolating valve, then the PV valve, followed by the mast riser and final isolating valves, ensuring pressure control and safety of the tank boundary.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Oil Tanker Cargo Operations (TASCO).
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