Cdl combination vehicles - Study guides, Class notes & Summaries

What two things are important to prevent rollover? (6.1.1) - 1. Keep cargo as close to the ground as possible 2. Drive slowly around turns When you turn suddenly while pulling doubles, which trailer is most likely to turn over? (6.1.2) - The rear most trailer What is the "crack-the-whip" effect? (6.1.2) - When you make a quick lane change or sudden movement of your steering wheel, the rear trailer tends to swing out. The force of the rear trailer becomes amplified, causing it to roll ...

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Exam- CDL combination vehicles| Questions with Complete Solutions 100% Solved

How should you test the tractor semi trailer combination for being properly coupled? - Pull gently forward in low gear against the locked trailer brakes, then inspect your coupling. When coupling to the trailer, how far do you back up before stopping the first time? - Until the fifth wheel plate just touches the trailer. What do you check before backing under the trailer? - Make sure the trailer brakes are set. Air lines on a combination vehicle are often colored to keep them from getti...

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What is the maximum speed limit for heavy trucks on the highway at night? - 65mph What should you do when going down a steep grade in a heavy vehicle? - Shift to a lower gear What should you do when turning right in a vehicle which is too large to be turned while staying in the proper lane? - Approach the corner in the proper lane, about 4 feet from the curb(close enough to keep a car from passing on the right). As soon as the front wheels pass the corner, turn wide to the right, swinging o...

Exam- CDL combination vehicles|45 Questions with Complete Solutions Rated A+

CDL COMBINATION VEHICLES EXAM

Fully loaded rigs are _____ times more likely to roll over in a crash than empty rigs. correct answers 10 What 2 things help prevent a rollover? correct answers - Keep the cargo as close to the ground as possible - Drive slowly around turns Bobtails can be very hard to stop smoothly. It takes them longer to stop than a tractor-semitrailer loaded to maximum gross weight. True or False? correct answers True Trailer Jacknife correct answers When the wheels of a trailer lock up, the trail...