MO CDL PRACTICE TEST - GENERAL KNOWLEDGE

31. Which of the following statements about over-the-counter drugs is true?
They can be used while on duty, as long as you drink coffee to stay awake.
They may affect safe driving ability.
They are not considered drugs.
32. Name a common cause of tire fires.
Under-inflated tires
Overinflated tires
Driver smoking
33. Use your four-way emergency flashers:
to warn drivers behind you that people are working on the road.
when parked at the side of the road.
All of the above.
34. If confronted by an aggressive driver, you should:
ignore gestures
try to stay in front of them.
react to gestures.
35. When changing lanes, you should:
not use your turn signals.
do it quickly.
None of the above.
36. Shaded parts of the road:
usually don't freeze.
will melt before open areas.
will remain icy and slippery after other areas have melted.
37. The first thing to do at an accident scene is to:
keep another accident from happening.
care for the injured.
notify authorities.
38. When parked on the side of the road, you should:
turn off all lights.
flash your brake lights.
use the 4-way emergency flashers.
39. When checking the steering system for defects, you should look for:
bent, loose, or broken parts, such as tie rods.
cut or cracked valve stems.
missing or broken leaves in any leaf spring.
40. Which of the following is a good way to avoid becoming an aggressive driver?
Keep your following distance reasonable.
Be realistic about your travel time.
All of the above.
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