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.
What is the purpose of a pre-trip inspection?
2.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
3.
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?
4.
It you are being tailgated you should
5.
Most serious skids are a result of
6.
Controlled braking is used when
7.
Which of the following is true about rear drive wheel braking skids?
8.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
10.
Shifting gears properly is important because
11.
Which of the following is a sign of drowsy driving
12.
The braking effect of the engine is greatest when
13.
Which of the following happens when a tire blows at highway speed?
14.
When you are driving at night, you should
15.
Drinking alcohol can affect your
16.
When you are driving through construction zones, you should
17.
Which of the following should you NOT do?
18.
Convex (curved) mirrors will
19.
The Driver’s Manual says you should use your horn
20.
Before entering a curve, you should
21.
The proper way to load a vehicle is
22.
Bridge formulas are designed to
23.
When you see a hazard in the road in front of you, you should
24.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
25.
Which of the following is true about the use of reflective emergency triangles?
26.
As alcohol begins to build up in the body, which of the following is affected first?
27.
When driving in fog, you should
28.
If you are aren’t sure that you have safe space to pass under an object, you should
30.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
31.
Which of the following conditions may produce a skid?
32.
When traveling down a long downgrade, you should always
33.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
35.
Why do hazardous materials regulations exist?
36.
When fighting a fire, which is most correct?
37.
What three factors add up to the total stopping distance for a commercial vehicle?
38.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
39.
Which of the following is true?
40.
Can federal inspectors inspect your truck or bus?
41.
Which of the following statements about causes of vehicle fires is true?
42.
While driving you are looking ahead of your vehicle. How should you be looking?
43.
Use of alcohol can cause serious driving errors, including
44.
Placarding, the use of hazardous material placards and labels, is an example of
45.
Which of the following is true concerning cold weather driving?
46.
Which of the following statements is true?
47.
Water will extinguish which of the following fires?
48.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
49.
“Over-the-counter” medication used to treat the common cold
50.
When backing your vehicle, you should
