2024 Facts for Drivers PDF

Q. What is the difference between a “flammable liquid” and a “combustible liquid”? A. A combustible liquid has a higher flashpoint and is more difficult to ignite than a flammable liquid. The distinction between the two is based on the flashpoint (which ts the lowest temperature a...

Q. What is the difference between a “flammable liquid” and a “combustible liquid”? A. A combustible liquid has a higher flashpoint and is more difficult to ignite than a flammable liquid. The distinction between the two is based on the flashpoint (which ts the lowest temperature at which vapor ignites in a specified test). The upper limit of the flashpoint of flammable liquids is 141° FE. Liquids with a flash- point between 141° P and 200° F are classified as combustible liquids. Gasoline was previously classed as a flammable liquid, and diesel fuel and kerosene were once classed as combustible liquids. All three are now legally classified as flammable liquids. Q. What should professional drivers do if they learn that their unit is leaking liquid HM? A. Ifthlquid HM are leaking, the professional driver should try to stop in a safe place, off the road, as soon as possible and make every effort to keep the leakage from reaching sewers. If the leak is such that it cannot be stopped, the driver should dig a ditch and attempt to dike the liquid, if possible and safe to do so. ©. When do the FMCSRs require a professional driver to be in attendance when a fuel tanker is being fueled? A. A driver must be in attendance during the fueling of a tanker, when the vehicle 1s required to be placarded for the transporta- thon of HM. 115