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.
Drinking alcohol can affect your
2.
When backing your vehicle, you should
3.
While driving you are looking ahead of your vehicle. How should you be looking?
4.
Most serious skids are a result of
6.
If a state or federal inspector judges that your vehicle is unsafe, they will put the vehicle out of service
7.
As alcohol begins to build up in the body, which of the following is affected first?
8.
Which of the following conditions may produce a skid?
9.
When traveling down a long downgrade, you should always
10.
Which of the following is true concerning cold weather driving?
11.
The braking effect of the engine is greatest when
12.
“Over-the-counter” medication used to treat the common cold
13.
Use of alcohol can cause serious driving errors, including
14.
If you drive through heavy rain or standing water your brakes may get wet. What can this cause when you apply the brakes?
15.
When fighting a fire, which is most correct?
16.
Which of the following statements about backing a commercial vehicle to a dock is NOT true?
17.
Which of the following is true about rear drive wheel braking skids?
18.
Controlled braking is used when
19.
If you break down on a level, straight, four-lane, divided highway, where should you place the reflective warning triangles?
20.
According to the Commercial Driver’s manual, why should you limit the use of your vehicle’s horn?
21.
Placarding, the use of hazardous material placards and labels, is an example of
22.
Your vehicle is 40 feet long and you are traveling at 50 mph. The safe following distance is
24.
How many missing or broken leaves in a leaf spring will cause your vehicle to be placed out-of-service?
25.
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?
26.
Water will extinguish which of the following fires?
27.
Which of the following statements is true?
28.
Why do hazardous materials regulations exist?
29.
What is the purpose of a pre-trip inspection?
30.
If you are aren’t sure that you have safe space to pass under an object, you should
31.
When driving in fog, you should
32.
Shifting gears properly is important because
33.
Can federal inspectors inspect your truck or bus?
34.
Which of the following is true about the use of reflective emergency triangles?
35.
Which of the following statements about causes of vehicle fires is true?
36.
When you are driving through construction zones, you should
37.
Which of the following is true?
38.
Bridge formulas are designed to
40.
Which of the following should you NOT do?
41.
Which of the following is a sign of drowsy driving
42.
The Driver’s Manual says you should use your horn
43.
The proper way to load a vehicle is
44.
It you are being tailgated you should
45.
When you see a hazard in the road in front of you, you should
46.
Convex (curved) mirrors will
47.
Which of the following happens when a tire blows at highway speed?
48.
What three factors add up to the total stopping distance for a commercial vehicle?
49.
When you are driving at night, you should
50.
Before entering a curve, you should
