PSSR Exit Exam • Set 6 Question 3 of 30

What safety device is fitted on gas cylinders to prevent overpressure explosion in a fire?

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Direct Answer

Option A: Bursting disc or fusible plug

Compressed gas cylinders incorporate pressure relief devices such as bursting discs or fusible plugs that melt at elevated temperatures to vent gas safely.

All Options

Bursting disc or fusible plug (Correct Answer)

Non-return flapper valve

Sight glass indicator

Rubber drain plug

Detailed Explanation & Context

Compressed gas cylinders incorporate pressure relief devices such as bursting discs or fusible plugs that melt at elevated temperatures to vent gas safely.

Relevant Framework: STCW 2010 Manila Amendments • DG Shipping E-Learning & Exit Exam Standards • Personal Safety & Social Responsibilities (PSSR).

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More Questions in PSSR Set 6

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Q1 What is the purpose of Risk Assessment before carrying out non-routine shipboard tasks? Q2 Under MARPOL Annex IV, what is the requirement for discharging sewage from an approved sewage treatment plant into the sea? Q3 What safety device is fitted on gas cylinders to prevent overpressure explosion in a fire? Q4 What precaution must be taken before opening steam lines or boiler blowdown valves? Q5 What color coding is universally used on ships to identify Emergency Fire Fighting Equipment locations? Q6 What precaution is required when storing oxygen and acetylene cylinders in gas welding stations? Q7 What action must a seafarer take if a piece of power machinery exhibits abnormal vibration or strange noise? Q8 Under the Maritime Labour Convention (MLC 2006), what fundamental right is guaranteed to all seafarers? Q9 What safety equipment is required when handling battery banks containing liquid sulfuric acid? Q10 What is the primary danger of using carbon dioxide (CO2) in a fixed engine room fire extinguishing system?