CDL · CDL general knowledge
Which of the following is good downshifting practice?
Correct answer: If a curve calls for a lower gear, shift down before you enter it.
Answer options
- AIf a downhill grade calls for a lower gear, wait to shift down until you are already descending it.
- BIf a curve calls for a lower gear, shift down before you enter it. Correct
- CWhen double-clutching into a lower gear, let the rpm fall while in neutral with the clutch released.
Why
Slowing down and selecting the lower gear before a curve lets you apply some power through the bend, which keeps the vehicle stable, and lets you accelerate on the way out. On a downgrade you likewise shift down before the descent begins, and a double-clutch downshift calls for raising, not lowering, the rpm while in neutral.
About this question
Topic: CDL general knowledge License: CDL
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Where it applies: Asked in every state.
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This question is part of Steering, Shifting and Backing (29 questions). Take the full set and check your score.
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