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.
Convex (curved) mirrors will
3.
Which of the following statements is true?
4.
As alcohol begins to build up in the body, which of the following is affected first?
5.
When traveling down a long downgrade, you should always
6.
Which of the following is true about the use of reflective emergency triangles?
8.
Which of the following is true about rear drive wheel braking skids?
9.
What three factors add up to the total stopping distance for a commercial vehicle?
10.
Why do hazardous materials regulations exist?
11.
When you are driving at night, you should
12.
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?
13.
Placarding, the use of hazardous material placards and labels, is an example of
14.
Which of the following statements about causes of vehicle fires is true?
15.
Which of the following is true concerning cold weather driving?
16.
“Over-the-counter” medication used to treat the common cold
17.
Which of the following is true?
18.
Bridge formulas are designed to
19.
While driving you are looking ahead of your vehicle. How should you be looking?
20.
When you see a hazard in the road in front of you, you should
21.
Water will extinguish which of the following fires?
22.
The braking effect of the engine is greatest when
24.
Controlled braking is used when
25.
Use of alcohol can cause serious driving errors, including
26.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
27.
When you are driving through construction zones, you should
28.
The Driver’s Manual says you should use your horn
29.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
30.
When fighting a fire, which is most correct?
31.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
33.
The proper way to load a vehicle is
34.
Before entering a curve, you should
35.
Most serious skids are a result of
36.
Shifting gears properly is important because
37.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
38.
Which of the following should you NOT do?
39.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
40.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
41.
If you are aren’t sure that you have safe space to pass under an object, you should
42.
What is the purpose of a pre-trip inspection?
43.
Can federal inspectors inspect your truck or bus?
44.
When driving in fog, you should
45.
It you are being tailgated you should
46.
Which of the following happens when a tire blows at highway speed?
47.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
48.
When backing your vehicle, you should
49.
Drinking alcohol can affect your
50.
Which of the following is a sign of drowsy driving
