CDL Commercial Drivers License General Knowledge Practice Test

Free 5-question sample test with instant feedback. See how ready you are.

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Sample Questions

Question 1

What is the proper hand position recommended for steering a commercial vehicle?

Answer: Keep both hands on the steering wheel on opposite sides, typically at the 9 and 3 o'clock or 8 and 4 o'clock positions.

Question 2

What is 'off-tracking' in relation to large commercial vehicles?

Answer: Off-tracking is when the rear wheels of a vehicle follow a different (shorter) path than the front wheels during a turn, causing the rear to cut corners.

Question 3

Why must a CMV driver make a wider turn when turning right at an intersection?

Answer: Because the rear wheels off-track and cut the corner, swinging wide before completing the turn helps prevent the rear of the vehicle from hitting curbs, signs, or other objects.

Question 4

What is 'steer axle weight limit' and why does it matter for basic vehicle control?

Answer: It is the maximum legal weight that can be placed on the front (steer) axle. Overloading it can make steering heavy and difficult, reducing the driver's ability to control the vehicle.

Question 5

What technique should a driver use to recover from a front-wheel skid caused by over-steering?

Answer: Stop turning and/or braking so hard. Straighten the front wheels and allow traction to return; do not jerk the wheel in the opposite direction.