CDL - Combination Vehicles (With accurate answers)

To prevent rollovers correct answers Keep load close to ground as possible Drive slowly around corners Tailers may rollover without tractor rolling over How to prevent trailer skid correct answers 1. Recognize trailer skid early with mirrors 2. Stop braking 3. If must enter another lane to turn, turn wide as you complete the turn. When backing, how to correct trailer drift? correct answers Turn the steering wheel in the direction of the drift When do you use trailer hand brake? correct answers ONLYfor tersting trailer brakes Should trailer hand brake be used for parking? correct answers No B/c trailer brakes are airbrakes--air leaks out and will eventually lead to unlocking of brakes Glad Hands correct answers Hose couplers that connect service and emergency air lines What effect do ABS have on overall braking capability correct answers ABS is addition to normal brakes and do not increase or decrease braking capability Once trailer coupled with tractor... correct answers *raise landing gear, starting in LOW gear range, and switching to HIGHgear range once free of weight *Secure crank handle safely When coupling tractor and trailer, how much space between 5th wheels? correct answers NOspace b/t lower and upper 5th wheels When backing tractor under trailer, which gear should be used? correct answers Lowest reverse gear Why back tractor directtly to trailer rather than at angle? correct answers Might buckle landing gear and damage/collapse trailer ground supports. Max lengths correct answers Single vehicle or trailer in combo is 53' Doubles: 61' trailer combined length Buses: 40ft