Alabama CDL Class C Practice Test – 20 Questions with Answers

B. Certain vehicles that do not meet Class A or B definitions but require a CDL, including some vehicles transporting passengers or hazardous materials

A Class C CDL generally covers certain commercial vehicles that do not meet the Class A or B definitions but require a CDL because of their intended use or characteristics.

A. To operate a vehicle transporting certain quantities of hazardous materials

A Class C CDL may be required for certain vehicles transporting hazardous materials, depending on the vehicle and cargo.

A. H endorsement

The H endorsement is associated with the transportation of hazardous materials and requires additional qualification requirements.

A. P endorsement

A Passenger (P) endorsement is generally required for drivers operating commercial motor vehicles designed to transport passengers, subject to applicable requirements.

B. To identify safety defects before operating the vehicle

A pre-trip inspection helps identify defective or unsafe equipment before the vehicle is operated.

B. Inflation, tread, condition, and visible damage

Tires should be inspected for proper inflation, adequate tread, damage, and other conditions that could make them unsafe.

C. Have the defect corrected before operating the vehicle

A commercial vehicle with a serious safety defect should not be operated until the problem has been properly addressed.

B. Move to the right and stop when safe

Drivers should yield to emergency vehicles using audible and visual warning signals and move to the right and stop when safe.

A. To have more time and space to react

Maintaining adequate following distance gives the driver additional time to respond to sudden stops, hazards, or changing traffic conditions.

B. Reduce speed and increase following distance

Heavy rain can reduce visibility and traction, so drivers should slow down and allow additional space between vehicles.

C. Ease off the accelerator and avoid sudden movements

Sudden steering, braking, or acceleration can cause loss of control. Gradually easing off the accelerator can help restore traction.

A. Check mirrors and blind spots and signal

A safe lane change requires checking surrounding traffic and blind spots and signaling your intention before moving.

C. Continue to the next exit and safely reroute

Missing an exit does not justify a dangerous maneuver. Continue safely and use another exit or route.

B. Stop before the tracks

Never enter a railroad crossing unless there is enough space for your vehicle to completely clear the tracks.

A. It prevents cargo from shifting or falling

Proper cargo securement helps prevent cargo from moving, falling, or creating a hazard for the driver and other road users.

A. To monitor surrounding traffic and blind spots

Frequent mirror checks help the driver monitor traffic around the vehicle and identify vehicles that may be difficult to see directly.

B. Reduce speed before entering the curve

Reducing speed before a curve helps maintain control and reduces the risk of skidding or rollover.

C. Stop at a safe location and rest

Fatigue can reduce alertness and reaction time. A fatigued driver should stop and rest rather than continue driving.

C. Safely stop and address the problem

A low-air warning can indicate a serious brake-system problem and should not be ignored.

A. Operate the vehicle safely and comply with applicable laws and regulations

Commercial drivers are responsible for safe vehicle operation, required inspections, and compliance with applicable traffic and commercial driving requirements.