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.
It you are being tailgated you should
2.
When driving in fog, you should
3.
The proper way to load a vehicle is
4.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
5.
Which of the following happens when a tire blows at highway speed?
6.
Controlled braking is used when
7.
Placarding, the use of hazardous material placards and labels, is an example of
8.
When you are driving through construction zones, you should
10.
Which of the following is a sign of drowsy driving
11.
Before entering a curve, you should
12.
When you are driving at night, you should
13.
What three factors add up to the total stopping distance for a commercial vehicle?
14.
While driving you are looking ahead of your vehicle. How should you be looking?
15.
Which of the following is true?
16.
Bridge formulas are designed to
17.
When backing your vehicle, you should
18.
When fighting a fire, which is most correct?
19.
As alcohol begins to build up in the body, which of the following is affected first?
20.
What is the purpose of a pre-trip inspection?
21.
Which of the following conditions may produce a skid?
23.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
24.
Shifting gears properly is important because
25.
Which of the following is true concerning cold weather driving?
26.
The braking effect of the engine is greatest when
27.
Which of the following is true about the use of reflective emergency triangles?
28.
Which of the following statements about causes of vehicle fires is true?
29.
Drinking alcohol can affect your
30.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
31.
Water will extinguish which of the following fires?
32.
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?
33.
“Over-the-counter” medication used to treat the common cold
34.
Most serious skids are a result of
35.
Which of the following is true about rear drive wheel braking skids?
36.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
37.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
38.
If you are aren’t sure that you have safe space to pass under an object, you should
39.
Which of the following statements is true?
40.
The Driver’s Manual says you should use your horn
41.
Which of the following should you NOT do?
42.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
43.
When traveling down a long downgrade, you should always
44.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
45.
Use of alcohol can cause serious driving errors, including
47.
Can federal inspectors inspect your truck or bus?
48.
Why do hazardous materials regulations exist?
49.
Convex (curved) mirrors will
50.
When you see a hazard in the road in front of you, you should
