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If a tractor-trailer is going too fast on a ramp, curve, or turn, ______ will push the unit outward.

Gravity

Inertia

Centrifugal Force

Speed, centrifugal force, driver behavior, the environment, and gravity are all factors that contribute to a rollover.

True

False

Which of the following Essential 7 Driving Techniques can help prevent a rollover?

Avoid Distractions

Be attentive to the road ahead

React proper to hazards

Observe proper speed for conditions

All of the above

_________ refers to a tire’s adhesion or grip with the road surface as the vehicle is moving.

Rolling Traction

Slippage

Depth

Which of the following is an Essential 7 Driving Technique that can help prevent a jackknife on a slippery road?

Steer away from the skid

Observe proper speed for conditions

Apply constant pressure to the brakes

What should a driver do to recover from a jackknife?

Disengage the clutch or shift to neutral

Do not brake

Steer into the skid

All of the above

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