10 exam-style questions with answers and explanations, straight from our 1,030-question bank. Tap an answer to check yourself. When you're ready, take the scored version in the free practice test.
These 10 free TX-CDL questions are organized by exam domain, so you can see how each part of the Texas CDL Permit Test blueprint is tested. Reveal the answer and explanation under each question.
A Texas driver will operate a 28,000-pound-GVWR straight truck towing a trailer whose GVWR and loaded weight are both 9,800 pounds. The combination's GCWR is 37,800 pounds. Which CDL class is required?
Correct answer: B - Class B
A permitted oversize load is 14 feet 6 inches high. A temporary sign on the authorized route shows 14 feet 4 inches of clearance, and the opening has not been independently verified. Which response is appropriate?
Correct answer: C - Stop short and obtain an authorized, verified route
An 18,400-pound machine is secured against forward movement. Four tiedowns each contribute 2,000 pounds to aggregate WLL. A fifth passes over the machine from one side of the trailer to the other; its chain is rated at 4,700 pounds, but its hook is rated at 1,500 pounds. Which conclusion is correct?
Correct answer: A - Accept; weakest-component WLL totals 9,500 pounds
A tractor-trailer is disabled on the shoulder of a divided highway. Traffic approaches only from behind. Which triangle placement pattern is correct?
Correct answer: D - Within 10 feet of the rear, then 100 and 200 feet toward traffic
At 35 mph in standing water, the steering suddenly feels light and the truck no longer responds normally, although the wheels are not locked. Which interpretation and response fit best?
Correct answer: B - Hydroplaning; ease off the accelerator and steer smoothly
A driver has selected 35 mph as the safe speed before a long downgrade. Each time the vehicle returns to 35 mph, which braking cycle should follow?
Correct answer: A - Brake firmly to about 30 mph, release, and let the brakes cool
Near 3:00 a.m., a driver notices two missed signs and cannot remember the last several miles. Coffee is available at the next fuel stop. Which response addresses the actual impairment?
Correct answer: C - Pull off safely and sleep before resuming
A steering-axle tire measures 5/32 inch in most major grooves and 3/32 inch at one point in a major groove; the measurement is not at a tie bar, hump, or fillet. How should the tire be classified?
Correct answer: D - Unacceptable; one measured major-groove point is below the 4/32-inch minimum
A 70-foot combination is traveling 45 mph on dry pavement when a car begins tailgating the trailer. Applying the CDL following-distance rule, what adjustment should the driver make?
Correct answer: D - Keep at least 8 seconds and add more space ahead
A coupling tug test holds, but daylight remains between the trailer apron and fifth wheel, and the locking jaws encircle the kingpin head rather than its shank. How should the connection be handled?
Correct answer: D - Uncouple and recouple; the kingpin is high-hooked
The TX-CDL exam also covers these domains. Drill them in the full free practice test:
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