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.
2.
When fighting a fire, which is most correct?
3.
Why do hazardous materials regulations exist?
4.
Use of alcohol can cause serious driving errors, including
5.
When traveling down a long downgrade, you should always
6.
Water will extinguish which of the following fires?
7.
Which of the following statements about causes of vehicle fires is true?
8.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
9.
When you see a hazard in the road in front of you, you should
10.
Which of the following is a sign of drowsy driving
11.
When you are driving at night, you should
12.
When driving in fog, you should
13.
Convex (curved) mirrors will
14.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
15.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
16.
Which of the following is true about rear drive wheel braking skids?
17.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
18.
Drinking alcohol can affect your
19.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
20.
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?
21.
While driving you are looking ahead of your vehicle. How should you be looking?
23.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
24.
Most serious skids are a result of
25.
The braking effect of the engine is greatest when
26.
Can federal inspectors inspect your truck or bus?
27.
The proper way to load a vehicle is
28.
Which of the following should you NOT do?
29.
Placarding, the use of hazardous material placards and labels, is an example of
30.
Which of the following is true concerning cold weather driving?
31.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
32.
What is the purpose of a pre-trip inspection?
33.
The Driver’s Manual says you should use your horn
34.
Which of the following statements is true?
35.
It you are being tailgated you should
36.
When backing your vehicle, you should
37.
If you are aren’t sure that you have safe space to pass under an object, you should
38.
“Over-the-counter” medication used to treat the common cold
39.
Which of the following is true?
41.
Which of the following is true about the use of reflective emergency triangles?
42.
When you are driving through construction zones, you should
43.
Which of the following conditions may produce a skid?
44.
As alcohol begins to build up in the body, which of the following is affected first?
45.
Before entering a curve, you should
46.
Bridge formulas are designed to
47.
What three factors add up to the total stopping distance for a commercial vehicle?
48.
Which of the following happens when a tire blows at highway speed?
49.
Shifting gears properly is important because
50.
Controlled braking is used when
