For trailers equipped with air brakes, which classes of license are allowed to operate them if they weigh over 4,600 kg?

When it comes to operating trailers equipped with air brakes that weigh over 4,600 kg, it is essential to understand the licensing requirements tied to the type of vehicle being driven.

A Class 1 license permits drivers to operate any vehicle combination, including those with air brakes, without restrictions based on weight or the type of trailer. Hence, individuals with a Class 1 license are qualified to handle any size and type of trailer, ensuring that they can manage the complexities associated with higher weight limits and specific brake systems effectively.

A Class 2 license also allows for the operation of larger vehicles, specifically buses and certain heavy trucks but has limitations compared to a Class 1 license. However, drivers holding a Class 2 license can still manage trailers with air brakes over 4,600 kg, provided that they are operating within the scope defined for that class.

The other license classes mentioned, like Class 5 and Class 7, do not meet these requirements because they are designed for operating lighter vehicles or are for novice drivers, which do not typically involve handling large commercial equipment with air brakes. Therefore, the combination of Class 1 and Class 2 licenses is appropriate, confirming that the correct answer involves these specific classes.