Rev Up for the Ontario MTO Truck Knowledge Test 2026 – Haul Your Success to the Finish Line!

There are nine classes of dangerous goods, not seven as option B suggests. Option A is not correct because there are more than five classes of dangerous goods. Option D is incorrect because there are fewer than ten classes of dangerous goods. The nine classes of dangerous goods include explosives, gases, flammable liquids, flammable solids, toxic and infectious substances, radioactive materials, corrosives, miscellaneous dangerous substances and articles, and dangerous goods that are environmentally hazardous.