MEK Exit Exam • Set 4 Question 24 of 30

Oxygen and ______ is used in gas welding on board

✓

Direct Answer

Option A: Acetylene

Oxy-acetylene welding is the standard gas welding method used on ships. Acetylene provides the high-temperature flame necessary to melt steel effectively when mixed with oxygen.

All Options

Acetylene (Correct Answer)

LPG

Argon

Nitrogen

Detailed Explanation & Context

Oxy-acetylene welding is the standard gas welding method used on ships. Acetylene provides the high-temperature flame necessary to melt steel effectively when mixed with oxygen.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Marine Engineering Knowledge (MEK).

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