{"product_id":"2940013582309","title":"CDL Practice Test Study Guide: Double\/Triple Trailers Endorsement","description":"This CDL practice test study guide contains information for the Double\/Triple Trailers Endorsement.\u003cbr\u003e\u003cbr\u003eIn order to obtain a Double\/Triple Trailers Endorsement each applicant must have knowledge covering:\u003cbr\u003e\u003cbr\u003eProcedures for assembly and hookup of the units;\u003cbr\u003e\u003cbr\u003eProper placement of heaviest trailer;\u003cbr\u003e\u003cbr\u003eHandling and stability characteristics including off tracking, response to steering, sensory feedback, braking, oscillatory sway, rollover in steady turns, yaw stability in steady turns;\u003cbr\u003e\u003cbr\u003eand\u003cbr\u003e\u003cbr\u003ePotential problems in traffic operations, including problems the motor vehicle creates for other motorists due to slower speeds on steep grades, longer passing times, possibility for blocking entry of other motor vehicles on freeways, splash and spray impacts, aerodynamic buffeting, view blockages, and lateral placement.\u003cbr\u003e\u003cbr\u003e\u003cbr\u003eSections of this CDL Practice Test Study Guide include:\u003cbr\u003e\u003cbr\u003e\u003cbr\u003ePulling Double\/Triple Trailers\u003cbr\u003eCoupling \u0026amp; Uncoupling\u003cbr\u003eInspecting Doubles \u0026amp; Triples\u003cbr\u003eDouble\/Triples Air Brake Check\u003cbr\u003eSample Test  \u003cbr\u003eSample Test Answers\u003cbr\u003ePre-Trip Inspection Memory Aid","brand":"CDL Digest","offers":[{"title":"Default Title","offer_id":47147585896688,"sku":"2940013582309","price":1.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0737\/7593\/9824\/files\/2940013582309_p0.jpg?v=1763945441","url":"https:\/\/shop-qa.barnesandnoble.com\/products\/2940013582309","provider":"Barnes \u0026 Noble (DEV)","version":"1.0","type":"link"}