{"product_id":"2940013582132","title":"CDL Practice Test Study Guide: Air Brakes","description":"This CDL practice test study guide contains air brake system information for those who drive vehicles with air brakes; therefore needing an \"Air Brakes\" endorsement on their CDL license.\u003cbr\u003e\u003cbr\u003e49 CFR 383.95 Air Brake Restrictions.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eIf an applicant either fails the air brake component of the knowledge test, or performs the skills test in a vehicle not equipped with air brakes, the State shall indicate on the CDL, if issued, that the person is restricted from operating a CMV equipped with air brakes.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eFor the purposes of the skills test and the restriction, air brakes shall include any braking system operating fully or partially on the air brake principle.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eSections of this CDL Practice Test Study Guide include:\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eAir Brake System Parts\u003cbr\u003eDual Air Brake Systems  \u003cbr\u003eInspecting Air Brakes\u003cbr\u003eUsing Air Brakes\u003cbr\u003eSample Test   \u003cbr\u003eSample Test Answers\u003cbr\u003ePre-Trip Inspection Memory Aid","brand":"CDL Digest","offers":[{"title":"Default Title","offer_id":47147575378160,"sku":"2940013582132","price":2.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013582132_p0.jpg?v=1763582625","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013582132","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}