ch 7.txt

Portable fire extinguishers should be considered -

Backpack pump tank water extinguishers usually have a maximum capacity of -

What is the principle agent of a Wet Chemical fire extinguisher?

The primary mode in which Water extinguishes a fire is through -

What is meant by 'Saponification'?

What is meant by 'smothering' a fire?

What is meant by cooling a fire?

The primary mode in which Foam extinguishes a fire is through -

The primary mode in which Dry Chemical extinguishes a fire is through -

The primary mode in which Wet Chemical extinguishes a fire is through -

The primary mode in which Dry Powder extinguishes a fire is through -

The primary mode in which Carbon Dioxide extinguishes a fire is through -

The primary mode in which Clean Agent extinguishes a fire is through -

The secondary mode in which Foam extinguishes a fire is through -

The secondary mode in which Water extinguishes a fire is through -

The secondary mode in which Dry Chemical extinguishes a fire is through -

Fires that involve flammable and combustible liquids are classified as -

Fires that involve ordinary combustibles such as textiles, paper, plastic, rubber and wood are classified as -

Fires that involve combustible oils are classified as -

Fires that involve combustible metals are classified as -

__ fires are Class A or Class B fires created by electrical energy.

The first step in extinguishing a Class C fire is to -

Pump-Type water extinguishers are applicable to which class of fire?

Under normal conditions Stored-Pressure water extinguishers can obtain a fire stream of -

Wet Chemical fire extinguishers should only be use on which of the following classes of fire?

Carbon dioxide fire extinguishers can be used on which of the following classes of fire?

Stored -pressure water extinguishers are normally compressed with which of the following gases?

What is the main purpose of adding Class A foam to water extinguishers?

Dry Powder extinguishers are used to extinguish which types of fires?

Which of the following types of water extinguishers are safe to use on energized electrical equipment?

You are responding to MCDONALDs where the deep frier oil cooking the french fries as burst into flames. Which of the following extinguisher would you use to extinguish this fire?

Which of the following extinguishers is particularly useful in combating fires in or suppressing vapors from small liquid fuel spills?

When AFFF and water are mixed together, the resulting foam mixture -

Which of the following liquids is AFFF effective on?

AFFF extinguishers are not effective on which of the following classes of fire?

Which of the following extinguishers were designed specifically as replacements for Halon 1211?

Carbon Dioxide extinguishers are effective in extinguishing which of the following classes of fire?

CO2 fire extinguishers should be protected from freezing if they are expose to temperatures below -

The reach of a Carbon Dioxide extinguisher is -

One hazard in using CO2 extinguishers is -

Which portable extinguisher is the most common portable fire extinguisher in use today?

Multipurpose dried chemical extinguishers are rated for which class of fire?

Which type of portable fire extinguisher has the characteristic 'horn' nozzle?

What is the effective reach of a Halon 1301 extinguisher?

Which of the following extinguishers has a nearly invisible gaseous stream?

The stream reach of a dry chemical extinguisher under normal conditions is -

Normal discharge time for a hand-carried dry chemical extinguisher is -

Halon 1211 extinguishers are primarily designed for which of the following class of fire?

Which compound would you NOT expect to find in dry chemical extinguishers?

Care against freezing should be given to dry chemical extinguishers if they are exposed to temperatures below -

When using a dry chemical extinguisher, the best results are obtained by attacking the

A Class D fire extinguisher is used to extinguish which type of fire?

You are called to an alarm at an old boarding school, and notice that there are soda-acid extinguishers in the corners of the stairwells. What should you do?

Which of the following is NOT part of every fire extinguisher inspection?

When inspecting fire extinguishers, if an extinguisher is found to be deficient in weight by __ it should be removed from service and replaced.

Underwriter's laboratories has assigned a numerical rating system for Class A water fire extinguishers based on the extinguisher's -

Class A fire extinguishers have a UL numerical rating from 1 to -

What is the UL numerical rating for Class B fire extinguishers based on?

UL numerical ratings for Class B fire extinguishers run from 1-B to -

What is the UL numerical rating range for Class C fire extinguishers?

Some extinguishers are suitable for more than one class of fire. These extinguishers are marked in which of the following manners?

Selecting the proper portable fire extinguisher depends on which of the following factors?

Which of the following obsolete extinguishers is designed to be turned upside-down in order to operate?

The most effective way to extinguish a fire with a portable extinguisher is to direct the extinguishing agent -

A quick way to remember the steps in the operation of portable fire extinguishers is the -

When using a portable extinguisher on a fire, the firefighter should always __ before approaching the fire.

Backpack extinguishers are recommended in all of the following circumstances except -

NFPA 10 requires that Stored-Pressure water extinguishers should be protected against freezing if they are going to be exposed to temperatures less than -

Which of the following statements regarding Dry Powder extinguishers is true?

Class A foam concentrate is sometimes added to a water extinguisher to increase effectiveness of extinguishing deep-seated fires, vehicle fires, and wildland fires. What is the main effect of the Class A foam.

Which of the following extinguishers are capable of creating a blanket of foam?

One of the main fears in using a CO2 extinguisher on flammable liquids is that the -

84) A common-sized extinguisher, such as a multipurpose extinguisher rated 4-A, 20 B:C should be able to extinguish a Class A fire which is __ times larger than a 1-A fire, and also be able to extinguish approximately __ times as much Class B fire as a 1-B extinguisher.

The labelling system recommended by NFPA 10 is the use of -

Firefighters using portable extinguishers should approach the fire from the -

Portable extinguishers that have been used should -

All portable fire extinguishers expel their contents by one of the following methods except -

Wheeled dry chemical extinguishers are rated for all but which class of fire?

All of the following are factors that determine the value of a fire extinguisher except -

Any fire extinguisher that shows any sign of damage or corrosion should be -