During inspection, how are windshield wipers tested?

Windshield wipers are essential for maintaining visibility during inclement weather, which is crucial for safe driving. During an inspection, they are tested primarily for their effectiveness and condition. This involves checking whether the wipers appropriately clear away water, snow, or debris from the windshield, ensuring that the driver has a clear line of sight. Additionally, the condition of the wiper blades is assessed to determine if they are worn, cracking, or otherwise damaged, which would hinder their performance.

Assessing effectiveness means that inspectors will likely observe how well the wipers function at different speeds and whether they wipe the windshield without skipping or leaving streaks. Thus, focusing on both the operational quality and physical state of the wipers ensures they meet safety standards necessary for safe vehicle operation.

Other factors, while they may contribute to the overall functionality of windshield wipers, are secondary during a state inspection. For example, testing solely for noise might not provide a complete picture of their effectiveness. Alignment with the windshield is important, but it falls under the broader category of condition and functionality; it's not a standalone criterion for inspection. Speed settings alone do not represent the full scope of testing needed to ensure the wipers perform adequately in various driving conditions.