Home › CDL Practice Tests › General Knowledge Questions › Question 358
When downshifting with a double-clutch, what must you do while in neutral?
- A.Let rpm fall to idle
- B.Turn the engine off briefly
- C.Raise engine rpm to the higher speed the lower gear requires at that road speed, then engage the gear
- D.Hold the clutch down and coast
Correct answer
C. Raise engine rpm to the higher speed the lower gear requires at that road speed, then engage the gear
Why
A lower gear spins the engine faster for the same road speed, so the driver revs the engine in neutral to match. That rev is the step new drivers most often skip, which is why their downshifts grind or refuse to engage.
Manual topic: Shifting - Downshift · From the General Knowledge practice bank (GK-358).