PSSR Exit Exam • Set 6 Question 2 of 30

Under MARPOL Annex IV, what is the requirement for discharging sewage from an approved sewage treatment plant into the sea?

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Direct Answer

Option A: May be discharged at any distance from land provided effluent shows no visible floating solids or discoloration

Effluent from an IMO-approved Sewage Treatment Plant (Annex IV) can be discharged anywhere without distance restrictions if non-discolored and free of floating solids.

All Options

May be discharged at any distance from land provided effluent shows no visible floating solids or discoloration (Correct Answer)

Must be discharged at least 50 NM from land

Can only be discharged in port

Must be incinerated on deck

Detailed Explanation & Context

Effluent from an IMO-approved Sewage Treatment Plant (Annex IV) can be discharged anywhere without distance restrictions if non-discolored and free of floating solids.

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?