What should wiper blades be tested for during inspection?

Wiper blades play a critical role in ensuring visibility during adverse weather conditions. During an inspection, it is essential to test them for their ability to wipe and clear water from the windshield effectively, without leaving streaks. This ability ensures that the driver has a clear line of sight, which is crucial for safe driving.

When wiper blades are functioning properly, they should make full contact with the windshield and have the right amount of pressure to remove water efficiently. Streaks can indicate wear or damage to the blades, reducing visibility and creating safety hazards. Therefore, evaluating the wiping ability of wiper blades is a vital part of the vehicle inspection process to maintain safety standards on the road.

Proper installation and color, resistance to heat and cold, and availability of replacement parts, while important, do not directly address the primary functional requirement of wiper blades during inspection, which is their effectiveness in clearing the windshield.