Question

1. carbon dioxide fire extinguishers are designed for which types of fuels?

class b and c
classes a, b and c
class a and c
class d and a

1. it is not important to know how many people reside in the home, but it is important to know their ability to get out of the home in case of a fire

true
false

1. during a fire emergency, you should close all doors behind you to slow the spread of the fire.

true
false

Explanation:

1. Carbon dioxide fire extinguishers are effective for Class B (flammable liquids) and Class C (energized electrical equipment) fires as they displace oxygen and cool the fire without leaving a residue that could damage electrical equipment.
2. Knowing how many people reside in a home is important as it affects evacuation planning and ensuring everyone can get out safely in case of a fire.
3. Closing doors during a fire emergency helps to slow the spread of fire, smoke, and heat by containing them in a particular area.

Answer:

1. A. Class B and C
2. B. False
3. A. True