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.
Bridge formulas are designed to
2.
When fighting a fire, which is most correct?
3.
Most serious skids are a result of
4.
Why do hazardous materials regulations exist?
5.
What three factors add up to the total stopping distance for a commercial vehicle?
7.
Placarding, the use of hazardous material placards and labels, is an example of
8.
Controlled braking is used when
9.
Use of alcohol can cause serious driving errors, including
10.
Drinking alcohol can affect your
11.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
12.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
13.
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?
14.
When you are driving at night, you should
15.
The proper way to load a vehicle is
17.
As alcohol begins to build up in the body, which of the following is affected first?
18.
If you are aren’t sure that you have safe space to pass under an object, you should
19.
When you see a hazard in the road in front of you, you should
20.
When backing your vehicle, you should
21.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
22.
The braking effect of the engine is greatest when
23.
Which of the following is true?
24.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
25.
Convex (curved) mirrors will
26.
While driving you are looking ahead of your vehicle. How should you be looking?
28.
When you are driving through construction zones, you should
29.
Which of the following conditions may produce a skid?
30.
Which of the following happens when a tire blows at highway speed?
31.
Before entering a curve, you should
32.
It you are being tailgated you should
33.
Which of the following is true concerning cold weather driving?
34.
When traveling down a long downgrade, you should always
35.
The Driver’s Manual says you should use your horn
36.
Water will extinguish which of the following fires?
37.
Which of the following statements is true?
38.
Which of the following is true about the use of reflective emergency triangles?
39.
Which of the following is a sign of drowsy driving
40.
Which of the following statements about causes of vehicle fires is true?
41.
Which of the following is true about rear drive wheel braking skids?
42.
“Over-the-counter” medication used to treat the common cold
43.
Can federal inspectors inspect your truck or bus?
44.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
45.
When driving in fog, you should
46.
Shifting gears properly is important because
47.
Which of the following should you NOT do?
48.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
49.
What is the purpose of a pre-trip inspection?
50.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
