MISSISSIPPI CDL COMBINATION PRACTICE TEST
11.
If you get stuck on the railroad tracks, the first thing you should do is:
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try to move your vehicle until you see the train.
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immediately get out of the cab and move away from the tracks.
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scream for help.
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stay in your vehicle and call 911.
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12.
Which of the following is NOT part of testing the tractor protection valve?
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Stepping on and off the brake pedal several times to reduce the air pressure in the tanks.
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Charging the trailer air brake system.
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Pulling forward slowly, then applying the trailer brakes.
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Shutting off the engine.
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13.
Which of the following makes a rollover more likely?
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Keeping the cargo as close to the ground as possible
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Driving quickly around turns
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Driving slowly around turns
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Keeping the load centered on your rig
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14.
You are driving a modern truck with a manual transmission. When going down a hill you should usually:
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downshift after your
speed has already built up.
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use a lower gear than would be required to go up the hill.
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shift into neutral and coast.
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use the same gear you would use to go up the hill.
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15.
If during vehicle inspection a tire is too hot to touch, you should:
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let air out.
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remain stopped until the tire cools off.
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immediately decrease air pressure.
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make sure there is enough engine oil on the tires.
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16.
Which of the following is NOT part of checking the sliding fifth-wheel?
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Testing the tractor protection valve
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Checking that all locking pins are present and locked in place
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Checking that the slide is not damaged or parts are missing
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Checking that it is properly greased
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17.
When driving at night you should:
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keep the interior light on.
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always use low beams.
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use your high beams when it is safe and legal to do so.
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All of the above.
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18.
When backing a trailer, you should:
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try to position your vehicle so you can back on a curved path.
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avoid using the brakes.
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turn the steering wheel toward the direction you want to go.
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turn the steering wheel in the opposite direction of the turn.
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19.
You are driving a combination vehicle and must use your brakes to avoid a crash. You should:
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use stab braking or controlled braking.
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use the parking brake.
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brake lightly and hold the steering wheel firmly.
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push the brake pedal as hard as you can and hold it there.
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20.
What should you do if your vehicle gets stuck on the railroad tracks?
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Stay inside the vehicle and call 911.
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Turn on the emergency flashers and call 911.
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Call 911, then get out of the vehicle and away from the tracks.
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Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
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