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.
Convex (curved) mirrors will
2.
What three factors add up to the total stopping distance for a commercial vehicle?
3.
It you are being tailgated you should
4.
The Driver’s Manual says you should use your horn
5.
“Over-the-counter” medication used to treat the common cold
6.
Which of the following is true about rear drive wheel braking skids?
7.
Before entering a curve, you should
8.
Which of the following should you NOT do?
9.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
10.
Which of the following statements about causes of vehicle fires is true?
11.
Shifting gears properly is important because
12.
Use of alcohol can cause serious driving errors, including
13.
Why do hazardous materials regulations exist?
14.
When backing your vehicle, you should
15.
Can federal inspectors inspect your truck or bus?
16.
Drinking alcohol can affect your
17.
Which of the following is true concerning cold weather driving?
19.
What is the purpose of a pre-trip inspection?
20.
When driving in fog, you should
21.
The braking effect of the engine is greatest when
22.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
23.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
24.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
25.
Which of the following statements is true?
26.
Placarding, the use of hazardous material placards and labels, is an example of
27.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
28.
Bridge formulas are designed to
29.
When you see a hazard in the road in front of you, you should
30.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
31.
The proper way to load a vehicle is
32.
Which of the following conditions may produce a skid?
33.
When you are driving through construction zones, you should
35.
When traveling down a long downgrade, you should always
36.
While driving you are looking ahead of your vehicle. How should you be looking?
37.
Water will extinguish which of the following fires?
38.
Most serious skids are a result of
39.
Which of the following is true?
40.
As alcohol begins to build up in the body, which of the following is affected first?
41.
Which of the following is true about the use of reflective emergency triangles?
42.
When you are driving at night, you should
43.
If you are aren’t sure that you have safe space to pass under an object, you should
44.
Controlled braking is used when
45.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
47.
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?
48.
Which of the following happens when a tire blows at highway speed?
49.
Which of the following is a sign of drowsy driving
50.
When fighting a fire, which is most correct?
