RPST Exit Exam • Set 2 Question 8 of 30
What are the characteristics of CO
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Direct Answer
Option A: It displaces oxygen
Carbon monoxide (CO) is a dangerous gas because it is odorless, colorless, and displaces oxygen in the air, leading to asphyxiation. While not acutely poisonous in low concentrations, its primary danger is oxygen displacement.
All Options
A
It displaces oxygen
(Correct Answer)
B
It is in itself not dangerous (not poisonous)
C
It is heavier than oxygen
D
All the above
Detailed Explanation & Context
Carbon monoxide (CO) is a dangerous gas because it is odorless, colorless, and displaces oxygen in the air, leading to asphyxiation. While not acutely poisonous in low concentrations, its primary danger is oxygen displacement.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Refresher Personal Survival Techniques (RPST).
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