PST Exit Exam • Set 2 Question 3 of 30
What safety feature prevents an inflatable life raft from over-inflating and bursting when CO2 gas discharges rapidly?
✓
Direct Answer
Option A: Safety relief valves fitted on each main buoyancy chamber
Overpressure relief valves automatically vent excess CO2 gas if pressure exceeds design operating limit (approx 2 psi / 0.14 bar).
All Options
A
Safety relief valves fitted on each main buoyancy chamber
(Correct Answer)
B
Manual drain cocks
C
Rubber expansion bellows
D
Automatic air release zipper
Detailed Explanation & Context
Overpressure relief valves automatically vent excess CO2 gas if pressure exceeds design operating limit (approx 2 psi / 0.14 bar).
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Survival Techniques (PST).
Advertisement
Practice Full PST Set 2
Test yourself with 30 interactive questions, live timer, and instant score.