ELDT Backing and Docking 2

Question 1

What is 'jackknifing' during a backing maneuver?

Accepted Answer

When the trailer swings past 90 degrees to the tractor and folds

Answer

When the brakes lock during backing

Answer

When the trailer's landing gear digs into the ground

Answer

When the tractor loses traction on ice

Question 2

Before backing into a dock, what should a driver inspect on foot?

Accepted Answer

The dock height, overhead clearances, the ground for obstacles, and the pathway

Answer

Only the dock bumpers

Answer

Only the trailer landing gear

Answer

Only other trucks in adjacent stalls

Question 3

What should a driver do if the trailer begins to drift off target during a blind-side backing maneuver?

Accepted Answer

Pull forward to reposition and start again if needed

Answer

Accelerate to correct faster

Answer

Continue backing and use the horn to warn others

Answer

Turn the wheel sharply in the opposite direction at speed

Question 4

What is the proper use of hazard lights when backing to a dock in a busy yard?

Accepted Answer

Activate hazard lights to warn nearby pedestrians and vehicles of the backing movement

Answer

Hazard lights are not required for yard movements

Answer

Use hazard lights only in rain or fog

Answer

Hazard lights should be off so other drivers know you are in control

Question 5

How should a driver handle a dock approach when dock bumpers are damaged or missing?

Accepted Answer

Report the condition and back with extra care to avoid striking the dock

Answer

Back in at normal speed since the trailer has its own protection

Answer

Refuse to dock until bumpers are repaired

Answer

Let the trailer contact the dock to test its condition

Question 6

During backing, which technique helps prevent jackknifing?

Accepted Answer

Keeping the trailer as straight as possible and using small steering inputs

Answer

Making large, fast steering corrections

Answer

Accelerating quickly to straighten the trailer

Answer

Turning the wheel fully to one side to realign the trailer

Question 7

What is the recommended backing speed for docking a tractor-trailer?

Accepted Answer

Extremely slow — almost at idle speed

Answer

As fast as possible to reduce exposure time

Answer

Fast enough to maintain momentum but never above 5 mph

Answer

Speed does not matter as long as you use mirrors