Combination Test

Combination Test

معاينة الاختبار: 10 أسئلة نموذجية.

1. What is the most important thing to do to prevent a rollover?
2. What is the "crack-the-whip" effect?
3. Which trailer is most likely to turn over due to the crack-the-whip effect?
4. Why must you steer gently and smoothly when pulling trailers?
5. What is off-tracking (or cheating)?
6. Which type of vehicle has the most off-tracking?
7. When backing a tractor-trailer, how do you steer to make the trailer go to the left?
8. What is a trailer jackknife?
9. How do you stop a trailer skid (jackknife)?
10. What does the trailer air supply control (yellow knob) do?