AB Firefighting and Emergency Procedures 4

Question 1

The Emergency Fire Control Plan posted aboard a vessel shows:

Accepted Answer

Location of fire-fighting equipment, fire zones, and detection systems

Answer

The fire control plan displays fire zones, locations of fire-fighting appliances, detection systems, and means of stopping ventilation and closing watertight doors.

Question 2

When fighting a fire in a confined space, a firefighter's air supply in an SCBA typically lasts how long under heavy work conditions?

Accepted Answer

15 to 30 minutes

Answer

Under strenuous activity, a standard 30-minute SCBA cylinder is often depleted in 15–30 minutes due to increased breathing rate.

Question 3

Which signal on a ship's general alarm indicates a fire emergency?

Accepted Answer

Continuous ringing of bells for at least 10 seconds

Answer

The general alarm for fire (and other emergencies) is a continuous ringing of the ship's bell or alarm for at least 10 seconds.

Question 4

Which type of portable extinguisher is best suited for a galley grease fire (Class K)?

Accepted Answer

Wet chemical extinguisher

Answer

Wet chemical extinguishers are specifically designed for Class K cooking oil fires, as they saponify the grease and prevent re-ignition.

Question 5

What precaution must be taken BEFORE activating a CO2 total flooding system in an engine room?

Accepted Answer

Ensure all personnel have evacuated the space

Answer

CO2 is lethal in the concentrations used for firefighting; all personnel must evacuate and be accounted for before release.

(AB) Able Seaman Exam Practice Test

(AB) Able Seaman Exam Practice Test

AB Firefighting and Emergency Procedures 4