Class A CDL Practice Test 1

How does doubling your speed from 20 mph to 40 mph affect braking distance?

Before driving a vehicle with a dual brake system, the driver should:

A serious traffic violation involves each of the following offenses except:

If using a helper when backing a vehicle, where should the helper be located?

Tar in the road pavement often rises to the top in very hot weather. Spots where the tar 'bleeds' are:

A driver should always:

Braking Distance

Doubling speed from 20 mph to 40 mph quadruples braking distance.
Important to consider how speed affects stopping time and distance for safe driving.

Dual Brake System

Drivers must test each brake system separately before using a vehicle with dual brakes.
Ensures that both systems are functioning correctly for safety.

Serious Traffic Violations

Serious traffic violations include having multiple licenses, using a cellphone while driving, and not stopping behind the stop line at a stop sign.
Improper lane usage is not considered a serious traffic violation.

Backing a Vehicle

When using a helper while backing up, the helper should be located at the front on the driver side for optimal visibility.
Ensures better communication and safety during maneuvers.

Road Conditions and Tar Bleeding

Tar may rise to the surface in hot weather, creating very slippery spots on the road.
Drivers should exercise caution around these areas as they can significantly reduce traction.

Driving Best Practices

Drivers should always stay in their lane for safety and predictability.
Having an emergency plan is crucial for dealing with unexpected incidents on the road.

Prepare for your Class A CDL with this practice test focused on essential driving knowledge. This quiz covers critical aspects such as braking distances and dual brake systems, ensuring you have the necessary information for safe driving. Test your understanding and enhance your readiness for the CDL exam.