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