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.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
2.
When driving in fog, you should
3.
When you see a hazard in the road in front of you, you should
4.
What is the purpose of a pre-trip inspection?
6.
If you are aren’t sure that you have safe space to pass under an object, you should
7.
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?
8.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
9.
The proper way to load a vehicle is
10.
Which of the following statements about causes of vehicle fires is true?
11.
Convex (curved) mirrors will
12.
Which of the following conditions may produce a skid?
13.
Water will extinguish which of the following fires?
14.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
15.
When you are driving at night, you should
17.
Which of the following is true about rear drive wheel braking skids?
18.
When you are driving through construction zones, you should
19.
When fighting a fire, which is most correct?
20.
Which of the following statements is true?
22.
Which of the following happens when a tire blows at highway speed?
23.
Bridge formulas are designed to
24.
Which of the following is true concerning cold weather driving?
25.
“Over-the-counter” medication used to treat the common cold
26.
Placarding, the use of hazardous material placards and labels, is an example of
27.
Most serious skids are a result of
28.
The braking effect of the engine is greatest when
29.
Use of alcohol can cause serious driving errors, including
30.
Controlled braking is used when
31.
Which of the following is true?
32.
Before entering a curve, you should
33.
When backing your vehicle, you should
34.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
35.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
36.
It you are being tailgated you should
37.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
38.
Drinking alcohol can affect your
39.
Shifting gears properly is important because
40.
While driving you are looking ahead of your vehicle. How should you be looking?
41.
The Driver’s Manual says you should use your horn
42.
Can federal inspectors inspect your truck or bus?
43.
As alcohol begins to build up in the body, which of the following is affected first?
44.
Which of the following should you NOT do?
45.
What three factors add up to the total stopping distance for a commercial vehicle?
46.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
47.
Which of the following is true about the use of reflective emergency triangles?
48.
Why do hazardous materials regulations exist?
49.
Which of the following is a sign of drowsy driving
50.
When traveling down a long downgrade, you should always
