MO CDL DOUBLES TRIPLES TEST - PRACTICE TEST

11. When checking the lights before driving:
make sure the parking brake is not set.
you should check them from inside the vehicle.
you should turn off the engine.
12. The parking brake:
should be used when you need to apply the brakes firmly.
should be used when driving in bad weather.
should be used whenever you park.
13. _________ rigs are much more likely to roll over in an accident than _________ rigs.
Fully loaded ; overloaded
Empty ; fully loaded
Fully loaded ; empty
14. If during vehicle inspection a tire is too hot to touch, you should:
let air out.
immediately decrease air pressure.
remain stopped until the tire cools off.
15. What is the most important reason to inspect your vehicle?
Vehicle inspection is required by federal and state laws.
Saving money by preventing costly repairs.
Your safety and that of other road users.
16. Air brakes use ________ to make the brakes work.
compressed air
compressed gas cylinders
compressed gases
17. What happens when the center of gravity of a truck moves higher up from the road?
The truck becomes easier to turn over.
It is easier it is to turn around corners.
The vehicle is more stable while turning.
18. Rims with welding repairs:
can be used for tires in the front of the vehicle.
are not safe.
can be used for tires in the rear of the vehicle.
19. When going down a steep downgrade, you should primarily brake using:
the parking brake.
the service brakes.
the braking effect of the engine.
20. Rough acceleration can cause:
damage electrical and brake lines.
tire damage.
mechanical damage.
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