What should be the condition of the windshield wipers during testing?

The condition of the windshield wipers is crucial for ensuring driver visibility and safety while operating a vehicle. During testing, the wipers should be clean and intact, indicating that they are in proper working order to effectively clear rain, snow, and debris from the windshield.

Having moisture on the glass while testing the wipers is important because it simulates real driving conditions where the wipers will be used. This allows the inspector to evaluate their performance in clearing water or other substances, ensuring that they wipe in a manner that provides clear visibility.

Other conditions, such as dry wipers or malfunctioning components, would impede the effectiveness of the wipers, posing a risk during adverse weather conditions. Therefore, it is essential that the wipers are not only intact but also capable of performing their intended function under realistic circumstances.