OCTCO/OCTF Exit Exam • Set 6 Question 20 of 30
PROTECTION for acetylene & oxygen line flame arresters & N/R flow back valves are for?
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Direct Answer
Option A: Carrying out gas welding & acetylene gas cutting work
Flashback arresters and non-return check valves on oxy-acetylene lines are critical safety devices preventing flame propagation back into the gas supply cylinders during gas welding/cutting.
All Options
A
Carrying out gas welding & acetylene gas cutting work
(Correct Answer)
B
Protection of personnel from high temp.
C
Preventing sparks from entering a tank or vent opening
D
Fire fighting
Detailed Explanation & Context
Flashback arresters and non-return check valves on oxy-acetylene lines are critical safety devices preventing flame propagation back into the gas supply cylinders during gas welding/cutting.
Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Oil and Chemical Tanker Cargo Operations (OCTCO/OCTF).
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