Windshield wiper blades should be: Before you start the test, please answer the question below regarding your insurance status. Without insurance you will not be able to drive in Ohio Do you currently have car insurance? Yes I have insurance. Great, you're all set! Click here if you still want to compare rates. No, I need insurance and I want to compare options. Question Windshield wiper blades should be: Answers Sticky. Clean. Brittle. Cracked. Explanation When inspecting your vehicle, you should check the wiper blades for damage, stiff rubber, and proper securement. Clean the blades if they are dirty. This questions appears in the following tests: Indiana Class B Knowledge Test Indiana Passenger South Dakota Class A Knowledge Test