Red Seal Transport Trailer Technician Practice Exam

What is the maximum allowable weight per axle for a trailer behind a standard commercial vehicle in Canada?

1. 3,000 kg

2. 4,500 kg

3. 5,000 kg

4. 6,000 kg

The correct answer is: 4,500 kg

In Canada, the maximum allowable weight per axle for trailers can vary based on several factors, including the specific regulations of each province and the total weight of the vehicle and trailer combination. The option indicating 4,500 kg aligns with the legal limits typically imposed for most commercial trailer operations when considering standard axle load limits. This figure reflects a compromise between vehicle performance, road safety, and infrastructure protection. Regulatory bodies set these limits to prevent excessive wear and damage to roads and bridges, ensuring safe operation of vehicles. Go beyond this weight could result in structural strains and potential damage to both the trailer and the towing vehicle, as well as increased risks of accidents due to reduced vehicle handling capabilities. Choosing 4,500 kg as the maximum axle weight takes into account the common configurations of vehicle combinations used in freight transport, while also adhering to safety standards. Understanding these limits is essential for any transport trailer technician, as they have direct implications for vehicle design, load distribution, and compliance with transportation laws.