AB Deck Safety and Pollution 2 — Questions and Answers
Question 1: Under MARPOL Annex I, what is the maximum oil content permitted in bilge water discharged overboard outside special areas?
- 5 ppm
- 15 ppm (Correct answer)
- 25 ppm
- 100 ppm
Correct answer: 15 ppm
MARPOL Annex I requires that bilge water discharged outside special areas must not exceed 15 parts per million (ppm) oil content.
Question 2: When working aloft or over the side, which safety item is MOST important to wear in addition to a life jacket?
- Steel-toed boots
- A safety harness with a lanyard (Correct answer)
- Heavy-duty gloves
- A hard hat only
Correct answer: A safety harness with a lanyard
A safety harness with a lanyard is essential when working aloft or over the side to prevent falls.
Question 3: What does an OWS (Oily Water Separator) 15 ppm alarm indicate?
- The separator filter needs replacement
- Oil content in the effluent exceeds the permitted limit (Correct answer)
- The holding tank is full
- Normal operation confirmed
Correct answer: Oil content in the effluent exceeds the permitted limit
The 15 ppm alarm triggers when the effluent oil content exceeds the MARPOL discharge limit, automatically stopping discharge.
Question 4: A 'permit to work' system is primarily designed to:
- Assign overtime compensation
- Ensure hazardous tasks are formally authorized and controlled (Correct answer)
- Record cargo loading operations
- Schedule routine maintenance
Correct answer: Ensure hazardous tasks are formally authorized and controlled
A permit to work system formally authorizes hazardous tasks and ensures all safety precautions are in place before work begins.
Question 5: Under MARPOL, what must be recorded each time bilge water is discharged overboard?
- Only the date and position
- An entry in the Oil Record Book Part I (Correct answer)
- A notation in the deck logbook only
- A report to the nearest port authority
Correct answer: An entry in the Oil Record Book Part I
All overboard discharges of bilge water must be entered in the Oil Record Book Part I as required by MARPOL Annex I.
Question 6: What is the PRIMARY hazard when using a needle gun or chipping hammer on deck?
- Excessive noise only
- Flying metal fragments and dust causing eye injury (Correct answer)
- Slipping on a wet deck
- Fire from sparks near fuel lines
Correct answer: Flying metal fragments and dust causing eye injury
Flying metal chips and dust pose the greatest risk when chipping or using a needle gun, making eye protection mandatory.
Question 7: If a ship is within a MARPOL Special Area, which action regarding garbage disposal is correct?
- Plastics may be discharged if ground to less than 25mm
- No garbage of any type may be discharged overboard (Correct answer)
- Food waste may be discharged beyond 12nm from shore
- Paper may be discharged if it sinks immediately
Correct answer: No garbage of any type may be discharged overboard
Within MARPOL Special Areas under Annex V, no garbage whatsoever may be discharged into the sea.
AB Deck Safety and Pollution 2
Under MARPOL Annex I, what is the maximum oil content permitted in bilge water discharged overboard outside special areas?