AB Firefighting and Emergency Procedures 2 — Questions and Answers
Question 1: Which class of fire involves flammable liquids such as fuel oil and paint?
- Class A
- Class B (Correct answer)
- Class C
- Class D
Correct answer: Class B
Class B fires involve flammable liquids such as oil, fuel, and paint.
Question 2: What is the FIRST action a crewmember should take upon discovering a fire aboard ship?
- Attempt to extinguish the fire immediately
- Sound the alarm and notify the bridge (Correct answer)
- Muster at the lifeboat station
- Retrieve the nearest fire extinguisher
Correct answer: Sound the alarm and notify the bridge
The first action is always to sound the alarm so others can respond and the ship's emergency team can be mobilized.
Question 3: A CO2 fixed fire-extinguishing system is MOST effective in which space?
- Open deck areas
- Crew accommodation quarters
- Enclosed machinery spaces (Correct answer)
- Cargo holds with live animals
Correct answer: Enclosed machinery spaces
CO2 systems are most effective in enclosed machinery spaces where the gas can blanket the fire and displace oxygen.
Question 4: When using a portable CO2 extinguisher on a fire, you should aim the horn at the:
- Top of the flames
- Base of the fire (Correct answer)
- Surrounding area first
- Nearest heat source overhead
Correct answer: Base of the fire
Directing CO2 at the base of the fire cuts off the fuel-oxygen interaction most effectively.
Question 5: The International Shore Connection is used to:
- Connect ship's fire hoses to shore-based fire hydrants (Correct answer)
- Transfer fuel oil from shore to ship
- Provide shore power to the vessel
- Connect rescue boats to the mothership
Correct answer: Connect ship's fire hoses to shore-based fire hydrants
The International Shore Connection is a standardized fitting that allows shore fire hoses to be connected to the ship's fire main.
Question 6: What does the term 'smothering' mean in fire suppression?
- Cooling the fire below ignition temperature
- Removing the fuel source from the fire
- Cutting off the oxygen supply to the fire (Correct answer)
- Chemically inhibiting the chain reaction
Correct answer: Cutting off the oxygen supply to the fire
Smothering extinguishes fire by excluding oxygen, one of the three elements of the fire triangle.
Question 7: Which fire detection system is best suited for spaces with machinery that produces heat during normal operation?
- Ionization smoke detector
- Rate-of-rise heat detector
- Fixed-temperature heat detector
- Optical flame detector (Correct answer)
Correct answer: Optical flame detector
Optical flame detectors sense infrared or ultraviolet radiation from flames, making them ideal where heat and smoke are normally present.
AB Firefighting and Emergency Procedures 2
Which class of fire involves flammable liquids such as fuel oil and paint?