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TASCO Exit Exam • Set 6 Question 9 of 30

Use of Pressure-Vacuum (PV) Relief Valve; label the diagram correctly:

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Direct Answer

Option D: 1-Deck Isolating Valve; 2- IG Main; 3- Vent Main; 4- By-Pass Valve; 5- PV valve; 6- Tank Isolating Valve

The Pressure/Vacuum (PV) valve setup includes isolating valves and a bypass to allow for testing or maintenance. Option C provides the correct sequence for managing the connection between the inert gas main, vent line, and the tank.

All Options

A
1-Deck Isolating Valve; 2- IG Main; 3- Vent Main; 4- By-Pass Valve; 5- Tank Isolating Valve; 6- PV valve
B
1-Deck Isolating Valve; 2- Vent Main; 3- IG Main; 4- By-Pass Valve; 5- PV valve; 6- Tank Isolating Valve
C
1-IG Main; 2-Deck Isolating Valve; 3- Vent Main; 4- By-Pass Valve; 5- PV valve; 6- Tank Isolating Valve
D
1-Deck Isolating Valve; 2- IG Main; 3- Vent Main; 4- By-Pass Valve; 5- PV valve; 6- Tank Isolating Valve (Correct Answer)

Detailed Explanation & Context

The Pressure/Vacuum (PV) valve setup includes isolating valves and a bypass to allow for testing or maintenance. Option C provides the correct sequence for managing the connection between the inert gas main, vent line, and the tank.

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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