- Entry Level Driver Training Speed and Space Management Questions and Answers Flashcards

How should a CMV driver manage speed on a long downhill grade?

Answer: Gear down before the hill and use the engine brake to control speed, applying wheel brakes only briefly

The correct technique is to gear down before the descent and use engine braking as the primary speed control, with brief intermittent wheel brake applications to supplement when needed.

What is the 'three-second rule' modification for CMVs?

Answer: CMVs need a minimum of 4 seconds plus additional time for vehicle length, weather, and visibility

The 3-second rule is a minimum for passenger vehicles. CMVs require at least 4 seconds as a baseline, with additional time added for vehicle length, adverse weather, poor visibility, and heavy loads.

When entering a highway from an on-ramp in a CMV, how should you manage speed?

Answer: Accelerate on the ramp to match the flow of traffic speed before merging

Drivers should use the acceleration lane to build speed to match highway traffic flow before merging, minimizing the speed differential between the CMV and other vehicles.

What is 'stab braking' and when is it used?

Answer: A controlled emergency braking technique for vehicles without ABS

Stab braking is an emergency technique for non-ABS vehicles where you apply the brakes hard until they lock, release to let wheels roll, then reapply - similar to what ABS does automatically.

Why is it important to adjust speed when approaching bridge overpasses in winter?

Answer: Bridge surfaces freeze before regular road surfaces because cold air circulates above and below

Bridges and overpasses freeze before regular roadway because they are exposed to cold air from above and below, with no ground heat to keep the surface warm.

How should a CMV driver manage space when being passed by another vehicle?

Answer: Stay in your lane, maintain speed, and be prepared for wind effects as the passing vehicle goes by

When being passed, maintain your lane position and steady speed. Be prepared for wind turbulence effects as the other vehicle passes, especially on windy days or when passed by large vehicles.