Missouri CDL General Knowledge study materials
Missouri CDL General Knowledge study resources

Missouri CDL General Knowledge: Shifting, Backing, and Turning

Missouri CDL General Knowledge · Work through your exam, one topic at a time.

All guide sections

Shifting, Backing, and Turning

What the exam tests

Shifting, Backing, and Turning tests smooth gear use, controlled low-speed maneuvering, and turns that account for off-tracking. The examiner looks for deliberate control, not speed.

Shifting rules

  • Use the correct gear for speed and load; do not lug, over-rev, or coast in neutral.
  • Shift progressively and avoid skipping gears unless the transmission and load allow it.
  • Keep both hands on the wheel except when shifting; do not ride the clutch.

Backing and turning

  • Back only when necessary. Use GOAL: Get Out And Look. Use a spotter when available and agree on signals.
  • Back slowly, use mirrors, and stop when unsure. A blind-side back is higher risk; reposition if possible.
  • Right turns require wide enough tracking to keep the trailer off the curb without entering another lane. Left turns require watching the rear off-track and protecting the inside lane.
  • Check clearance signs, wires, and overhangs.

Worked example

A 53-foot trailer is turning right from a narrow lane. The driver waits until the cab clears the curb, then turns, but the trailer tires still track inside. The fix is to begin the turn later and wider while checking the right mirror, not to swing left first and create a trap for passing traffic.

Traps that cost marks

Backing without a spotter, trusting one mirror, turning too early, and forgetting that the rear wheels cut inside the tractor path. A driver who cannot see both sides should stop and get out, not guess.