Cruise Ship Cruise Ship Environmental Regulations 1 — Questions and Answers
Question 1: Under MARPOL Annex VI, what are Emission Control Areas (ECAs) designed to limit?
- Carbon dioxide emissions from cruise ship engines
- Sulfur oxide (SOx) and nitrogen oxide (NOx) emissions from ship exhausts (Correct answer)
- Noise pollution from cruise ships near coastal areas
- Light pollution from cruise ships at night
Correct answer: Sulfur oxide (SOx) and nitrogen oxide (NOx) emissions from ship exhausts
ECAs under MARPOL Annex VI require ships to use low-sulfur fuel or exhaust cleaning systems to reduce SOx and NOx air emissions in designated coastal areas.
Question 2: What does 'graywater' refer to on a cruise ship?
- Seawater used for ballast purposes
- Wastewater from sinks, showers, laundry, and galleys (excluding toilet waste) (Correct answer)
- Recycled rainwater collected from decks
- Filtered seawater used in swimming pools
Correct answer: Wastewater from sinks, showers, laundry, and galleys (excluding toilet waste)
Graywater is wastewater from cabin sinks, showers, laundries, and galleys that is less contaminated than sewage (blackwater) but still regulated.
Question 3: MARPOL Annex IV prohibits cruise ships from discharging sewage (blackwater) within how many nautical miles of shore without treatment?
- 3 nautical miles
- 6 nautical miles
- 12 nautical miles (Correct answer)
- 50 nautical miles
Correct answer: 12 nautical miles
MARPOL Annex IV prohibits discharge of untreated sewage within 12 nautical miles of the nearest land, requiring advanced treatment before nearshore discharge.
Question 4: What is an 'Exhaust Gas Cleaning System (scrubber)' used for on a cruise ship?
- Cleaning engine room air for crew breathing
- Removing sulfur from exhaust gases to comply with low-sulfur emission regulations (Correct answer)
- Filtering seawater intake for engine cooling
- Removing odors from passenger cabin ventilation systems
Correct answer: Removing sulfur from exhaust gases to comply with low-sulfur emission regulations
Exhaust gas scrubbers wash sulfur from engine exhaust gases, allowing ships to burn cheaper high-sulfur fuel while still meeting MARPOL emission limits.
Question 5: Which international convention governs the prevention of pollution from ships?
- SOLAS
- STCW
- MARPOL (Correct answer)
- MLC
Correct answer: MARPOL
MARPOL (International Convention for the Prevention of Pollution from Ships) is the primary international treaty regulating ship-based marine pollution.
Question 6: What is a 'ballast water management system' designed to prevent on cruise ships?
- Corrosion of ballast tanks from salt water
- Introduction of invasive marine species into new ecosystems through ballast water exchange (Correct answer)
- Excess water weight during storms
- Contamination of onboard fresh water supplies
Correct answer: Introduction of invasive marine species into new ecosystems through ballast water exchange
Ballast water management systems treat ballast water to kill organisms before discharge, preventing invasive species from being transported to new environments.
Cruise Ship Cruise Ship Environmental Regulations 1
Under MARPOL Annex VI, what are Emission Control Areas (ECAs) designed to limit?