LGTCO/LGTF Exit Exam • Set 3 Question 24 of 30
Requirement for cargo tank entry with respect to tank atmosphere check of hydrocarbon content:
✓
Direct Answer
Option B: Hydrocarbon content must be less than 1% LFL
For safe entry into any gas cargo tank or enclosed space, hydrocarbon vapor content must be tested and verified to be less than 1% of the Lower Flammable Limit (LFL).
All Options
A
Hydrocarbon content must be more than 10% LFL
B
Hydrocarbon content must be less than 1% LFL
(Correct Answer)
C
Hydrocarbon content must be above the UFL
D
Hydrocarbon content must be between LFL and UFL
Detailed Explanation & Context
For safe entry into any gas cargo tank or enclosed space, hydrocarbon vapor content must be tested and verified to be less than 1% of the Lower Flammable Limit (LFL).
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Liquefied Gas Tanker Cargo Operations (LGTCO/LGTF).
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