Certified Fire Inspector II Practice Test 2026 - Free Practice Questions and Study Guide for Fire Inspectors

Flammable liquids are defined by their flash point, which is the lowest temperature at which the vapor of a liquid can ignite in the presence of an open flame or spark. The correct classification threshold for flammable liquids is typically set at a flash point below 100 degrees Fahrenheit. This is a standard set by many fire safety regulations, including those from the National Fire Protection Association (NFPA) and the Occupational Safety and Health Administration (OSHA).

Liquids with a flash point below 100 degrees Fahrenheit pose a significant risk since they can easily ignite under normal conditions, making it critical for safety measures to be in place when storing, handling, or using such substances. The correct answer relates to this widely accepted definition, which defines flammable liquids as those with a flash point below this temperature threshold, emphasizing the importance of adhering to established safety protocols related to fire hazards in various environments.