True or False: Every vehicle or trailer equipped with brakes must have one control device that operates all brakes.

The assertion that every vehicle or trailer equipped with brakes must have one control device that operates all brakes is considered true, as it ensures the safety and effectiveness of the braking system across various vehicle types. Having a single control device for all brakes helps maintain synchronized braking performance, allowing for more predictable handling when stopping or slowing down. This requirement is particularly critical for larger vehicles or trailers, which may have multiple braking systems and components, making it essential to ensure that all brakes engage simultaneously for stability and control.

While there may be exceptions based on specific vehicle configurations—like some specialized or vintage vehicles that might have unique braking systems—the general rule in many jurisdictions is that a single control mechanism for the brakes is mandated, especially for safety reasons. This helps avoid scenarios in which only part of the braking system is engaged, which could lead to accidents or loss of vehicle control.