Mixed Deck — All Fire Safety Topics Flashcards

What is the recommended frequency for conducting fire evacuation drills in most US workplaces according to OSHA?

Answer: At least annually

OSHA's emergency action plan standard (29 CFR 1910.38) requires drills to be conducted at least annually to keep employees familiar with evacuation procedures.

In the PASS method for using a fire extinguisher, what does the second 'S' stand for?

Answer: Sweep side to side at the base

PASS stands for Pull, Aim, Squeeze, Sweep — the final step is to sweep the nozzle side to side at the base of the fire.

What is the 'incipient stage' of fire development?

Answer: The earliest stage where combustion is just beginning and the fire is still small

The incipient stage is the initial fire development phase where heat, smoke, and gases are just beginning to be produced — the fire is still small and a portable extinguisher may be effective.

What is the typical effective range of a portable fire extinguisher's discharge stream?

Answer: 6–10 feet

Most portable fire extinguishers have an effective discharge range of approximately 6 to 10 feet.

NFPA 25 is the standard that governs the inspection, testing, and maintenance of:

Answer: Water-based fire protection systems

NFPA 25 is the Standard for the Inspection, Testing, and Maintenance of Water-Based Fire Protection Systems (sprinklers, standpipes, etc.).

What action should an employee take if they discover a fire that is too large to control with a portable extinguisher?

Answer: Evacuate immediately and activate the alarm

If a fire is beyond the incipient stage, employees should evacuate immediately and activate the fire alarm to alert others.

A fire door is found propped open with a wedge in a stairwell. What is the correct action?

Answer: Remove the wedge and allow the door to close as designed

Fire doors must never be propped open because they are designed to compartmentalize fire and smoke; removing obstructions restores their protective function.

Why must fire doors never be propped open with a door stopper?

Answer: It defeats the door's ability to compartmentalize fire and smoke spread

A propped fire door cannot close when needed, allowing fire and smoke to pass freely between compartments and eliminating the protection it provides.

A space heater placed too close to a curtain in an office is an example of which fire hazard type?

Answer: Heat source to combustible material proximity hazard

Placing a heat-generating device near combustible materials like curtains reduces the ignition time needed for a fire to start, a classic proximity hazard.

What is the primary purpose of a fire alarm annunciator panel?

Answer: To display the location of an alarm or trouble condition within the building

An annunciator panel shows responders exactly where in a building an alarm or trouble condition has been triggered, speeding response.

In a high-rise building fire, occupants on unaffected floors are typically instructed to:

Answer: Shelter in place unless directed otherwise by fire safety personnel

High-rise fire protocols often call for shelter-in-place on unaffected floors because stairwells can become overcrowded and smoke conditions may be worse below.

There should be portable fire extinguishers in every workplace.

Answer: FALSE

The statement is false because the requirement for fire extinguishers depends on the specific hazards, occupancy, and layout of a workplace, not a blanket rule for every single area. While most workplaces require them, regulations specify placement based on factors like travel distance to an extinguisher and the type of combustible materials present. Not every conceivable type of workplace or every single room within a workplace necessarily requires one.

Heat transfer through direct physical contact between materials is called:

Answer: Conduction

Conduction transfers heat through direct contact between materials, such as a metal structural beam conducting heat from a fire to an adjacent uninvolved room.

What is the minimum recommended distance to keep flammable materials from a portable space heater?

Answer: 3 feet

The NFPA recommends keeping all flammable items at least 3 feet away from portable space heaters to prevent ignition.

What is 'fuel load' and why does it matter in fire safety planning?

Answer: The total amount of combustible material in a space that can feed a fire

Fuel load describes the quantity and type of combustibles in a space, which directly affects how quickly a fire will grow and how intense it will become.

What is flashover in the context of fire development?

Answer: The sudden, simultaneous ignition of all combustible materials in a room

Flashover occurs when all combustibles in a room reach their ignition temperature simultaneously, resulting in near-instantaneous full-room fire involvement.

What is the primary purpose of a fire sprinkler system?

Answer: To control fire growth and protect escape routes

Sprinkler systems are designed to control fire growth and maintain tenable conditions for evacuation, not necessarily extinguish the fire entirely.

When putting out a fire, you ought to:

Answer: Turn your back to a fire exit (outward)

When fighting a small fire, it is crucial to position yourself with your back to a clear escape route, such as a fire exit. This ensures that if the fire escalates or becomes uncontrollable, you have an immediate and unobstructed path to safety. Never position yourself in a way that traps you between the fire and an exit.

Which agency sets the standard for fire extinguisher ratings in the United States?

Answer: Underwriters Laboratories (UL)

Underwriters Laboratories (UL) tests and rates fire extinguishers using the standard letter-number classification system.

Which workplace material is considered a Class A fire fuel?

Answer: Paper and wood

Class A fires involve ordinary combustibles such as paper, wood, cloth, and certain plastics.