LGTCO/LGTF Exit Exam • Set 5 Question 23 of 30
The fixed gas-detection system's alarm on a gas carrier is activated when flammable vapour concentration reaches:
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Direct Answer
Option B: 30% of the Lower Explosive Limit (LEL)
The IGC Code requires fixed gas-detection alarms in enclosed spaces to trigger at not more than 30% of the Lower Explosive Limit (LEL).
All Options
A
10% of the Lower Explosive Limit (LEL)
B
30% of the Lower Explosive Limit (LEL)
(Correct Answer)
C
20% of the Lower Explosive Limit (LEL)
D
40% of the Lower Explosive Limit (LEL)
Detailed Explanation & Context
The IGC Code requires fixed gas-detection alarms in enclosed spaces to trigger at not more than 30% of the Lower Explosive Limit (LEL).
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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