Examkin

Question

Difficulty: MediumBacking Safety Rules

A commercial motor vehicle driver needs to reverse an articulated combination vehicle into an off-street loading bay. According to official commercial driver backing safety rules, what is the correct sequence of actions to execute this maneuver safely? Arrange the following steps in the correct chronological order from first to last.

  1. 1Position the vehicle so that the maneuver allows backing and turning toward the driver's side (sight-side).
  2. 2Set the parking brakes, exit the cab, and walk around the vehicle to inspect the path for ground hazards and overhead clearances.
  3. 3Re-enter the cab and check both side mirrors to establish visual reference points before initiating movement.
  4. 4Engage the lowest reverse gear and back slowly at idle speed while continuously scanning mirrors on both sides.

Answer

The correct sequence begins with positioning the vehicle for sight-side backing, followed by securing the vehicle and walking the path to inspect clearances, re-entering the cab to verify both side mirrors, and finally backing slowly in the lowest reverse gear while continuously monitoring mirrors.
According to official CDL safety standards, a driver must first position the vehicle to enable sight-side backing where direct driver-side visibility is available. Next, the driver must secure the vehicle and perform a thorough walk-around inspection of the intended path (G.O.A.L.). Upon returning to the cab, the driver checks both side mirrors to establish reference baselines before shifting into reverse. Finally, the driver backs at idle speed in the lowest gear while continuously alternating mirror scans.

Step-by-Step Solution

1
Position the vehicle ahead of the bay to set up a driver-side (sight-side) backing trajectory.
Maximizes direct visibility and avoids hazardous blind-side backing.
Setting the initial position properly is the first fundamental step in basic commercial vehicle backing control.
2
Secure the vehicle with the parking brake, exit the cab, and inspect the travel line, ground obstacles, and overhead clearances.
Confirms the entire backing envelope is free of obstacles, pedestrians, and low overhead wires.
A physical walk-around inspection ensures hazards hidden from cab view are identified prior to movement.
3
Return to the driver's seat and check both external side mirrors.
Establishes reference points along both sides of the vehicle immediately prior to shifting into reverse.
Verifying both mirrors ensures side clearances are maintained and reveals any recent changes in the environment.
4
Shift into the lowest reverse gear and back at idle speed with continuous bilateral mirror scanning.
Maintains absolute vehicle control and allows instant stopping if an unexpected obstruction appears.
Backing slowly at engine idle speed gives the driver maximum reaction time to correct vehicle drift.

Key Concept

Commercial Vehicle Backing Safety Protocol and Sight-Side Execution
Estimated Time:1m 0s
Rate this question

Topics

Backing Safety Rules

More questions from this topic