CDL GENERAL KNOWLEDGE TEST (SD) - PRACTICE TEST

11. When driving on wet roads, you should:
reduce speed by 60%.
follow the vehicle ahead more closely than under ideal driving conditions.
pull of the road and get some rest.
reduce speed by about one-third.
12. Tar in the road pavement:
frequently rises to the surface in very hot weather.
can slow down your vehicle.
increases the ability to maintain traction on a vehicle.
does not affect the road surface.
13. The liver can only process ______ of alcohol per hour, much ____ than the alcohol in a standard drink.
one ounce; more
1/3 an ounce; less
1/8 an ounce; more
one ounce; less
14. Why should you complete an after-trip inspection report?
To prove that you finished your trip.
So you won't be held responsible for any subsequent damage.
To help the motor carrier know when the vehicle needs repairs.
All of the above.
15. The aggregate working load limit of your cargo tie-downs must be at least _____ times the weight of the cargo.
4
2
1/2
1.5
16. When the road is very slippery, you should:
stop at the first safe place.
downshift to stop.
apply the brakes often to keep the linings dry.
use the parking brake instead of the service brake.
17. A CDL is valid for:
5 years
4 years
2 years
3 years
18. The best way to see the rear and sides of your vehicle is to:
roll down your driver's window.
check your mirrors regularly.
roll down your passenger-side window.
use your rear view camera.
19. Which of the following statements about over-the-counter drugs is true?
They may affect safe driving ability.
They can be used while on duty, as long as you drink coffee to stay awake.
They are not considered drugs.
They are perfectly safe and legal.
20. To make the brakes work, air brakes use:
compressed air.
nitrogen.
hydraulic air.
carbon monoxide.
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