GASCO Exit Exam • Set 8 Question 8 of 30
Traces of inert gas constituents may be present even after aerating. What are the limits for carbon dioxide (CO2) and carbon monoxide?
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Direct Answer
Option D: CO2 <0.5% BV and CO <50ppm
The correct answer is CO2 <0.5% BV and CO <50ppm. This complies with established gas tanker operational standards, thermodynamics, and the IGC Code safety requirements.
All Options
A
CO2 <1.5% BV and CO <150ppm
B
CO2 <1.5% BV and CO <250ppm
C
CO2 <1.0%BV and CO <50ppm
D
CO2 <0.5% BV and CO <50ppm
(Correct Answer)
Detailed Explanation & Context
The correct answer is CO2 <0.5% BV and CO <50ppm. 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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