Chapter 11 protection systems
A Class A fire extinguisher rated as 4-A has the extinguishing capacity equal to __________of water.
5 gallons pg 248 because 4 times 1.25 gallons 4 times 20 cubic ft squared
According to NFPA 10, water-based extinguishers should be hydrostatically tested every ____ years.
5 years pg 254
What is the second step of the operation of a fire extinguisher, as labeled on the side of the fire extinguisher in a pictograph format?
Aim the nozzle pg 246
Which of the following classes of fire involves ordinary combustibles such as cloth, grain, paper, rubber, and wood?
Class A pg 244
Some of the classes of fire extinguishers have numbers in addition to their letter classification. Which of the following classes has a number before its letter?
Class B pg 248 top paragraph
Which of the following extinguishing agents is effective on Class D fires and eliminates oxygen by forming a crust on the materials and depleting the available oxygen?
Dry powder pg 247 maybe
How often should fire extinguishers have a visual inspection to ensure readiness and service ability?
Every 30 day pg 253
Which of the following extinguishing agents forms a vapor barrier between the Class B fuel and the atmosphere, thus cooling and smothering the fire?
Foam pg 246
What is the National Fire Protection Association standard for portable fire extinguishers?
NFPA 10 pg 244
Which type of fire extinguisher requires manual operation, creating the necessary pressure in the tank to expel the extinguishing agent?
Pump extinguisher pg 249
Which fire extinguisher type has a pressurized cartridge that, when activated, releases the pressurized gas into the extinguishing agent tank, forcing it out of a nozzle or hose?
Self-expelling extinguisher pg 249
Which of the following has both the pressurized expelling gas and the extinguishing agent mixed in the same tank, and uses gas to push the extinguishing agent out through a nozzle or hose when operated?
Stored pressure extinguishers pg 249
Who is responsible for the inspection, testing, and maintenance of fire extinguishers to ensure that they will be in working order when needed?
The property owner pg 244 code requirement for fire extinguisher paragraph top right.
Which of the following extinguishing agents can absorb more heat per pound than just about any other extinguishing material?
Water pg 246
Which extinguishing agent is effective on Class B and C fires, but has limited use on Class A fires?
carbon dioxide pg 246
Which of the following classes of fire involves cooking media that use combustible vegetable or animal oils and fats?
class K pg 245
Which classification of fire extinguishers involves energized electrical equipment?
class c pg 246 244 etc
Which of the following extinguishing agents is made up of small solid particles propelled by a pressurized gas that covers the burning material and decreases the oxygen concentration?
dry chemicals pg 247
The purpose of a conductivity test is to make sure the Class C extinguishing agent and equipment are nonconductive so that the ________ is safe from shock potentials.
extinguisher operator pg 249
Which extinguishing agent is a mixture of agents that, when applied, reacts with the fat in the cooking medium and develops a soapy foam blanket?
wet chemicals pg 247
If an extinguisher is rated as 120-B, it means that a non-expert extinguisher operator should have enough product to extinguish a:
120-square-foot pan fire pg 248
Which of the following Class A fire extinguisher ratings is based on outdoor tests?
30-A pg 248
