General Driving Knowledge — Missouri
Missouri CDL practice test: 413 free practice questions (Based on the official driver handbook). The official format is not yet verified; check the official site before your test. General Driving Knowledge: 153 questions.
Questions that do not fit a single topic: lane use, turning, signalling and other rules of the road.
This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines.
| Topic / Metric | Value |
|---|---|
| Topic | General Driving Knowledge |
| License test | Missouri CDL permit (CLP) knowledge tests |
| Topic questions | 153 (37% of 413 total) |
| Review status | This topic page is still being reviewed against the official handbook. Until review is finished it is hidden from search engines. |
Official handbook
Not yet verified
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Questions (153)
1. If you notice a cargo leak, you should identify the leaking hazardous materials by:
- Smelling the materials.
- Touching the materials.
- Using the shipping papers. ✓
Answer: C. Using the shipping papers.
Identify the leaking hazardous materials by using the shipping papers. The handbook says that when you discover a cargo leak, you identify the hazardous material by using shipping papers, labels, or package location. It also warns you not to touch leaking material and not to try to identify it or find the leak by smell. Toxic gases can destroy your sense of smell and can injure or kill you even when they do not smell. The shipping papers are the safe identification source named in the question.
2. If you are confronted by an aggressive driver, you should:
- Make eye contact.
- Ignore their gestures. ✓
- Try to race.
Answer: B. Ignore their gestures.
You should ignore the aggressive driver's gestures and refuse to react to them. The handbook says your first move is to get away from that driver if you can and not let pride drive your choices. It tells you not to challenge the person by speeding up or trying to hold your lane. Along with that, you should pay no attention to gestures and not respond to them. That is why ignoring the gestures is the correct action.
3. When should you slow for a curve?
- Before entering the curve ✓
- While in the curve
- After the curve
Answer: A. Before entering the curve
Slow down before you enter the curve, so you are at a safe speed and in the right gear before the turn. The handbook says to reduce speed and shift down before entering a curve. That way you can use some power through the turn to help keep the vehicle stable, and you can pick up speed once you are out. Another passage warns that braking in a curve is dangerous because the wheels can lock and the vehicle can skid. It also says trucks with a high center of gravity can roll over at the posted curve speed, so slowing ahead of the turn matters.
4. How often do hazardous materials employees need to be trained?
- At least once a week
- At least once every three years ✓
- At least one every 10 years
Answer: B. At least once every three years
5. The standee line:
- Is a line that passengers should not cross. ✓
- Is a line upon which passengers should stand.
- Is a line that should be used as passengers exit the bus.
Answer: A. Is a line that passengers should not cross.
The standee line is a line on the floor that passengers should not cross; standing riders must stay behind it. The handbook says no rider may stand forward of the rear of the driver's seat. On buses built to allow standing, there must be a two-inch line on the floor, or another way to show riders where they cannot stand, and that marking is the standee line. All standing riders must stay behind it. That makes the line a boundary riders should not cross, not a place to stand or a guide for leaving the bus.
6. Lower the risk of jackknifing by:
- Making sharp turns.
- Braking abruptly.
- Accelerating smoothly. ✓
Answer: C. Accelerating smoothly.
7. When exiting a vehicle, it is important to maintain ____ with your vehicle at all times.
- Three points of contact ✓
- Four points of contact
- Two points of contact
Answer: A. Three points of contact
When you get out of the vehicle, keep three points of contact with it at all times. The handbook describes exiting during CDL tests: secure the vehicle, face it, and keep three points of contact as you get out. The same wording appears for vehicle inspection and for the look during backing. That means you keep three contact points with the vehicle while entering or exiting. The rule is stated directly, so the answer is three points, not four or two.
8. Operating combination vehicles usually requires ____ operating single vehicles.
- Less skill than
- About the same level of skill as
- More skill than ✓
Answer: C. More skill than
9. If involved in an accident, which of the following is not recommended?
- Trying to move your vehicle to the side of the road
- Caring for the injured
- Driving away from the scene ✓
Answer: C. Driving away from the scene
Driving away from the scene is not recommended, and leaving the scene of an accident involving a CMV is listed as an offense. The handbook's accident procedure section says that when you are in an accident and not seriously hurt, you should act to prevent further damage or injury by protecting the area, notifying authorities, and caring for the injured. It also says that if your vehicle is involved, you should try to get it to the side of the road to help prevent another accident and let traffic move. Leaving the scene of an accident involving a CMV appears in the handbook's list of offenses, so driving off is the choice that goes against everything the procedure asks you to do.
10. If a shipping paper describes both hazardous and non-hazardous materials, the hazardous materials may need to be:
- Highlighted in a contrasting color. ✓
- Circled by a pen or marker.
- Unmarked.
Answer: A. Highlighted in a contrasting color.
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Last checked: 2026-10-17 · Verified from official source
Updated: · Based on the official driver handbook