Combination Flashcards
Why should you not use the trailer hand brake while driving?
It may cause trailer skidding.
What is the purpose of the fifth wheel?
It locks the trailer to the tractor.
What happens if the trailer is too light?
It may sway or jackknife easily.
What should you check before coupling a trailer?
Air lines, kingpin, locking jaws, and fifth wheel.
How do you know the trailer is securely coupled?
The locking jaws are fully closed around the kingpin.
What is the best way to test trailer brakes?
Apply trailer brakes manually while moving slowly.
Why must you be extra cautious when turning with a combination vehicle?
The trailer swings wider than the tractor.
How do you prevent trailer rollovers?
Take turns slowly, avoid sudden maneuvers, and balance the load properly.
