Class K extinguishers and agents are intended for fires involving
- Combustible metals such as magnesium
- Energized electrical switchgear
- Gasoline and other fuel spills
- Cooking oils and fats in kitchens
Show the answer
D. Cooking oils and fats in kitchens
Class K is cooking media: vegetable and animal oils and fats in commercial cooking appliances. Gasoline is a Class B fuel; hot cooking oil gets its own class because it re-ignites easily and needs a saponifying wet agent.
Reference: Firefighter I: classification of fires
A responder has a four-digit ID number from a placard. Which section of the ERG is used to look it up?
- The blue-bordered pages
- The orange-bordered pages
- The green-bordered pages
- The yellow-bordered pages
Show the answer
D. The yellow-bordered pages
The yellow section lists materials by ID number. The blue section lists them alphabetically by name, the orange section holds the response guides and the green section gives isolation and protective action distances.
Reference: Hazmat awareness: Emergency Response Guidebook sections
A ladder is raised with 24 ft of its length between the ground and the point where it rests on the wall. For the correct climbing angle, how far from the wall should the butt be?
- 4 ft
- 6 ft
- 8 ft
- 12 ft
Show the answer
B. 6 ft
The butt is placed about one quarter of the working length from the building: 24 / 4 = 6 ft. Using one third gives 8 ft, which makes the angle too flat.
Reference: Firefighter I: ground ladders, placement