How is the integrity of a train's suspension system assessed?

Assessing the integrity of a train's suspension system is crucial for ensuring the safety and comfort of the ride. The correct method involves conducting visual inspections and bounce tests. Visual inspections allow mechanics to identify any visible damage, wear, or misalignment in the suspension components, such as springs, shock absorbers, and mounts. This kind of check helps spot issues that could compromise the system's functionality.

Bounce tests are a practical method used to evaluate how well the suspension system absorbs shocks and maintains ride quality. By applying weight to the train and observing how well it returns to stable conditions, mechanics can determine if the suspension is functioning correctly and whether the damping characteristics are still effective.

In contrast, sound testing typically focuses on identifying mechanical noises for different issues and is not specifically targeted at assessing suspension integrity. Measuring tire pressure is important for ensuring optimal traction and safety, but it does not directly assess suspension system integrity. Checking fuel levels is necessary for operational reasons but does not relate to the suspension. Thus, visual inspections combined with bounce tests provide a comprehensive assessment of suspension integrity.