Hazard Recognition Flashcards

What is the 'fire triangle' composed of?

Answer: Fuel, oxygen, and heat

The fire triangle consists of three elements needed for combustion: fuel (something to burn), oxygen (usually from air), and heat (an ignition source). Removing any one element extinguishes the fire.

What hazard does a hot work permit address?

Answer: Operations involving open flames, sparks, or heat near combustible materials

Hot work permits are required for operations like welding, cutting, grinding, and soldering that produce flames, sparks, or heat that could ignite nearby combustible materials.

What is the most common cause of fire deaths in buildings?

Answer: Smoke inhalation

Smoke inhalation is the leading cause of fire deaths, as toxic gases and reduced oxygen in smoke can incapacitate and kill occupants before flames ever reach them.

An F-02 Fire Guard notices accumulated dust on electrical equipment during a patrol. What is the concern?

Answer: Dust is combustible and can contribute to fire risk near heat-producing equipment

Accumulated dust is combustible and can ignite from heat-producing electrical equipment, sparks, or other ignition sources. Regular cleaning is a fire prevention measure.

What is the primary hazard of storing propane cylinders indoors?

Answer: Leaking propane is heavier than air, accumulates at floor level, and creates explosion risk

Propane is heavier than air, so any leak will cause gas to accumulate at floor level where it can reach ignition sources and create a significant explosion hazard.

During patrol, an F-02 guard finds a portable heater placed near stacked cardboard boxes. What is the correct action?

Answer: Turn off the heater and report the hazard immediately

A portable heater near combustible materials is an immediate fire hazard. The guard should turn off the heater, separate the items, and report the unsafe condition immediately.