HAZMAT CDL Test 2025 – 400 Free Practice Questions to Pass the Exam

Question: 1 / 400

When fueling a placard vehicle, who must always be present?

A safety officer

The driver

Someone at the nozzle controlling the fuel flow

The requirement for having someone at the nozzle controlling the fuel flow during the fueling of a placard vehicle is rooted in safety regulations designed to prevent accidents and manage hazards associated with the handling of flammable materials. Having a person at the nozzle ensures that the fuel is being dispensed properly and allows for immediate intervention if any problems arise, such as spills or equipment malfunctions. This precaution is especially important when dealing with hazardous materials, where the potential for dangerous situations is heightened.

While the presence of a safety officer, driver, or fuel attendant can contribute to overall safety, it is critical that there is always someone physically managing the fuel dispensing at the nozzle. This ensures that proper protocols are followed and provides a direct line of control over the fueling process, reinforcing adherence to HAZMAT safety procedures.

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A fuel attendant

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