Firefighting and Emergency Procedures Flashcards
7 cards from real AB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Firefighting and Emergency Procedures flashcards as text
During a fire emergency, what is the primary purpose of boundary cooling?
Answer: To prevent fire from spreading to adjacent compartments
Boundary cooling involves applying water to bulkheads, decks, and doors surrounding a fire to prevent heat transfer and spread.
What type of fire extinguisher should NEVER be used on a Class C (electrical) fire?
Answer: Water extinguisher
Water conducts electricity and can cause electrocution or equipment damage when used on energized electrical fires.
When donning a Self-Contained Breathing Apparatus (SCBA), the facepiece seal must be checked by:
Answer: Performing a positive and negative pressure test
Positive and negative pressure seal checks confirm the facepiece is airtight before entering a hazardous atmosphere.
Which agent is used in a foam fire extinguisher and works by forming a blanket over burning liquids?
Answer: Aqueous Film-Forming Foam (AFFF)
AFFF creates a film over liquid fuel surfaces that prevents vapors from escaping and reaching ignition sources.
What is 'backdraft' in firefighting terminology?
Answer: A sudden explosive ignition when oxygen is introduced to a smoldering, oxygen-depleted fire
Backdraft occurs when a smoldering fire in an oxygen-starved space suddenly receives fresh air, causing rapid ignition or explosion.
Under SOLAS, what is the minimum number of fire pumps required on cargo ships of 1,000 GT or more?
Answer: Two
SOLAS requires at least two independently powered fire pumps on cargo ships of 1,000 GT or more.
A fire hose nozzle set to a fog pattern is most useful for:
Answer: Protecting firefighters from radiant heat
A fog or spray pattern creates a water curtain that absorbs radiant heat, protecting personnel advancing toward a fire.