Home › CDL Practice Tests › General Knowledge Questions › Question 117
Why does double-clutching matter when shifting a non-synchronized manual transmission?
- A.Releasing the clutch in neutral lets you match engine speed to road speed so the gears mesh smoothly
- B.It lets you skip using the clutch pedal entirely
- C.It is only needed when backing up
- D.It doubles the power sent to the drive wheels
Correct answer
A. Releasing the clutch in neutral lets you match engine speed to road speed so the gears mesh smoothly
Why
In a crash box the gears must be turning at compatible speeds before they will engage without grinding. Blipping or easing the throttle in neutral brings engine speed in line with the next gear, which protects the transmission and keeps shifts smooth.
Manual topic: Basic Control - Shifting Gears · From the General Knowledge practice bank (GK-117).