Fire Hazard Management Flashcards
6 cards from real CFPS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 Fire Hazard Management flashcards as text
A fire protection specialist is evaluating a chemical storage room and observes an NFPA 704 placard. What does the number 4 in the red diamond signify?
Answer: The material will rapidly or completely vaporize at normal atmospheric pressure and temperature, or is readily dispersed in air and will burn readily.
The red diamond on the NFPA 704 placard indicates the flammability hazard. A rating of 4 signifies the highest level of flammability, indicating that the material is extremely flammable and can easily ignite under normal conditions.
A manufacturing facility is implementing a hot work program in accordance with NFPA 51B. A designated fire watch is required for a welding operation in a non-designated area. For how long must the fire watch be maintained after the completion of the hot work?
Answer: For at least 60 minutes.
According to the 2019 edition of NFPA 51B, Standard for Fire Prevention During Welding, Cutting, and Other Hot Work, a fire watch must be maintained for at least 60 minutes after the completion of hot work to detect and extinguish any smoldering fires.
Which of the following is NOT a required element for a combustible dust explosion, as defined by the Dust Explosion Pentagon?
Answer: A flammable gas
The Dust Explosion Pentagon consists of five elements required for a combustible dust explosion: fuel (combustible dust), oxygen, an ignition source, dispersion of dust particles, and confinement. A flammable gas is not a required component, although it can be an ignition source.
A fire risk assessment is being conducted for an office building. Which of the following is the most appropriate first step in this process?
Answer: Identifying all potential fire hazards within the premises.
The first step in a standard fire risk assessment process is to identify all potential fire hazards. This includes identifying sources of ignition, sources of fuel, and sources of oxygen. Subsequent steps involve identifying people at risk, evaluating existing measures, and developing a plan.
According to NFPA 30, Flammable and Combustible Liquids Code, how is a Class I flammable liquid distinguished from a Class II combustible liquid?
Answer: By its flash point.
NFPA 30 classifies liquids based on their closed-cup flash points. Class I liquids (flammable) have flash points below 100°F (37.8°C), while Class II liquids (combustible) have flash points at or above 100°F (37.8°C) and below 140°F (60°C). This makes flash point the key distinguishing characteristic.
A manager of a chemical plant is seeking to reduce fire hazards associated with the storage of flammable liquids. Which of the following actions represents the MOST effective engineering control?
Answer: Installing an automatic fire suppression system in the storage area.
Installing an automatic fire suppression system is an engineering control that is designed to control a fire without human intervention, which is considered more reliable and effective than administrative controls (policies, training) or PPE. While all options are important components of a fire safety program, the suppression system directly mitigates the consequence of a fire once it has started.