The CDL General Knowledge practice test covers topics such as the rules of having a CDL and driving a commercial vehicle safety. Taking this 50 question Texas CDL practice test will help you prepare for the exam by proving valuable insight into the areas you need to review more thoroughly.
1. Which of the following conditions may produce a skid?
2. What is the purpose of a pre-trip inspection?
3. When you are driving through construction zones, you should
4. It you are being tailgated you should
5. Before entering a curve, you should
6. If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
7. If you are aren’t sure that you have safe space to pass under an object, you should
8. When backing your vehicle, you should
9. Controlled braking is used when
10. Bridge formulas are designed to
12. Which of the following statements is true?
13. When fighting a fire, which is most correct?
14. Most serious skids are a result of
15. If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
16. According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
17. Which of the following is true concerning cold weather driving?
18. “Over-the-counter” medication used to treat the common cold
19. Convex (curved) mirrors will
20. The proper way to load a vehicle is
22. Which of the following is true about the use of reflective emergency triangles?
23. If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
24. Why do hazardous materials regulations exist?
25. Drinking alcohol can affect your
26. The Driver’s Manual says you should use your horn
27. Can federal inspectors inspect your truck or bus?
28. Which of the following should you NOT do?
29. What three factors add up to the total stopping distance for a commercial vehicle?
30. Water will extinguish which of the following fires?
32. Which of the following happens when a tire blows at highway speed?
33. Which of the following statements about causes of vehicle fires is true?
34. Which of the following is true?
35. Shifting gears properly is important because
36. Which of the following is a sign of drowsy driving
37. How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
38. You are driving on a straight and level roadway at 60 mph and suddenly a tire blows out on your vehicle. What should you do first?
39. Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
40. Use of alcohol can cause serious driving errors, including
41. When traveling down a long downgrade, you should always
42. The braking effect of the engine is greatest when
43. As alcohol begins to build up in the body, which of the following is affected first?
44. While driving you are looking ahead of your vehicle. How should you be looking?
45. Placarding, the use of hazardous material placards and labels, is an example of
46. When you are driving at night, you should
47. When driving in fog, you should
48. Which of the following statements about backing a commercial vehicle to a dock is NOT true?
49. Which of the following is true about rear drive wheel braking skids?
50. When you see a hazard in the road in front of you, you should