GASCO Exit Exam • Set 5 Question 24 of 30
On tank vessels, which of these valve types is most commonly used in conjunction with hydraulically actuated controls?
✓
Direct Answer
Option C: Butterfly valves
The correct answer is Butterfly valves. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.
All Options
A
Non return valves
B
Globe valves
C
Butterfly valves
(Correct Answer)
D
Gate valves
Detailed Explanation & Context
The correct answer is Butterfly valves. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Advanced Training for Liquefied Gas Tanker Cargo Operations (GASCO).
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