Home › CDL Practice Tests › General Knowledge Questions › Question 33
Why should you leave extra space in front when stopped on an upgrade behind another vehicle?
- A.To let cars cut in front of you
- B.So the engine idles more smoothly
- C.Your vehicle and the one ahead may roll back slightly when starting
- D.To reduce wear on the clutch
Correct answer
C. Your vehicle and the one ahead may roll back slightly when starting
Why
Vehicles often roll back a few inches or feet when starting on a hill, especially with manual transmissions. Extra room keeps a small rollback from becoming a collision.
Manual topic: Safe Driving - Managing Space · From the General Knowledge practice bank (GK-033).