HAZMAT CDL Practice Test 2026 - Free CDL Practice Questions and Study Guide

Question: 1 / 400

Which material is categorized as a flammable liquid under Hazard Class 3?

Kerosene

Gasoline

Gasoline is categorized as a flammable liquid under Hazard Class 3 because it has a flashpoint below 60 degrees Celsius (140 degrees Fahrenheit). This low flashpoint indicates that gasoline can readily form ignitable mixtures with air at standard ambient temperatures, making it particularly hazardous in terms of fire risk. Proper handling, storage, and transportation protocols are essential when working with flammable liquids like gasoline to prevent accidents or incidents.

In contrast, while kerosene and paint thinner are also considered flammable liquids, they generally have higher flashpoints than gasoline, which classifies them differently. Diesel, on the other hand, is classified as a combustible liquid, with a flashpoint significantly above the thresholds defined for flammable liquids. Understanding these classifications is crucial for ensuring safety during the transport and handling of hazardous materials.

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Diesel

Paint thinner

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