CDL · CDL general knowledge

Which of these does NOT help you decide when to shift gears?

Correct answer: Reading the oil pressure gauge.

Answer options

  1. AWatching the road speed (mph)
  2. BReading the oil pressure gauge Correct
  3. CWatching the engine speed (rpm)

Why

You can time a shift by watching the tachometer for the right rpm or by learning which road speeds suit each gear. The oil pressure gauge warns you about engine lubrication and plays no part in choosing a gear.

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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