BIGF Exit Exam • Set 3 Question 20 of 30
In liquefaction plant which gas is removed as it freezes at a temperature above boiling point of Liquified Natural Gas
✓
Direct Answer
Option C: carbon dioxide
Carbon dioxide freezes at -78.5°C, well above the liquefaction temperature of LNG (-162°C), and must be removed to prevent solid plugging in heat exchangers.
All Options
A
methane
B
ethane
C
carbon dioxide
(Correct Answer)
D
hydrocarbons
Detailed Explanation & Context
Carbon dioxide freezes at -78.5°C, well above the liquefaction temperature of LNG (-162°C), and must be removed to prevent solid plugging in heat exchangers.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Basic Training for Ships subject to the IGF Code (BIGF).
Advertisement
Practice Full BIGF Set 3
Test yourself with 30 interactive questions, live timer, and instant score.