Question 985 Deck General

The correct answer is D) liquids that give off flammable vapors at or below 80°F (27°C). This is the correct definition of flammable liquids according to U.S. regulations. Flammable liquids are defined as those that have a flashpoint (the minimum temperature at which the liquid gives off sufficient vapor to form an ignitable mixture with air) at or below 80°F (27°C). This means the liquid can produce flammable vapors at normal ambient temperatures, posing a fire hazard. The other options are incorrect because they do not fully capture the regulatory definition. Option A is too narrow, as it only considers liquids with a flashpoint above 80°F. Option B refers to vapor pressure, not flashpoint. Option C includes liquids that can sustain combustion, but does not specify the flashpoint criteria.