GENERAL KNOWLEDGE CDL TEST MARYLAND - PRACTICE TEST
31.
The most important hand signal you should agree on with a helper is:
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Go
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Stop
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Keep backing
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Slowly
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32.
When a tire fails, the driver should:
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swerve to the right.
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drive on the shoulder.
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stay off the brake.
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immediately apply the brakes.
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33.
The 2 special conditions where you should downshift are:
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Before starting up a hill and after finishing a curve.
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Before starting down a hill and before entering a curve.
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Before starting up a hill and before finishing a curve.
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While going down hill and after finishing a curve.
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34.
To test the parking brake:
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gently try to pull forward with the parking brake on.
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step on and off the brake pedal to reduce air pressure.
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check that all shut-off valves are in the open position.
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turn off the engine.
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35.
You should not use your horn unnecessarily. Why?
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On vehicles possessing air brakes, it uses up air pressure you may need to be able to stop
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The horn can startle other drivers, which could be dangerous.
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The horn on a vehicle wears out very quickly
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All of the above.
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36.
When making a left turn at an intersection, you should:
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start your turn before reaching the center of the intersection.
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always take the left turn lane if there are two turning lanes.
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reach the center of the intersection before you start the left turn.
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always use your horn.
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37.
Before unloading explosive materials, you should:
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connect heater power sources.
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use hooks or other metal tools if possible.
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keep the engine running.
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turn your engine off.
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38.
Which of the following is NOT one of the four a basic skills needed to operate a commercial vehicle?
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Ability to back the vehicle safely
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Ability to steer
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Ability to multitask while driving
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Ability to accelerate
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39.
The service brake system:
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applies and releases the brakes when you use the brake pedal during normal driving.
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applies and releases the parking brakes.
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applies and releases the emergency brake.
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None of the above.
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40.
For safety during a trip, you should:
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check critical items when you stop.
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watch gauges for signs of trouble.
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use your senses to check for problems.
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All of the above.
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