CDL HAZMAT PRACTICE TEST UTAH
21.
Your vehicle has hydraulic brakes. When you press the brake pedal while driving and the pedal goes to the floor, remember that:
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shifting into neutral may help slow the vehicle.
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the parking brake should never used to slow the vehicle.
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pumping the brake pedal may generate enough hydraulic pressure to stop the vehicle.
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All of the above.
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22.
When possible, you should park:
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on the shoulder.
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so you will have to back up when you leave.
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on the roadway.
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so you will be able to pull forward when you leave.
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23.
To know how much space you should keep in front of you:
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estimate how many vehicle lengths there are between you and the vehicle ahead.
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estimate how many seconds it would take you to reach the vehicle ahead.
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wait until the vehicle ahead of you passes a clear landmark, then count off the seconds until you reach the same spot.
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None of the above.
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24.
When driving in very hot weather, you may have to:
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decrease your following distance.
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watch out for black ice.
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increase your speed until the tires cool off.
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reduce your speed to prevent overheating.
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25.
Anti-lock brakes:
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help you stop faster.
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increase your stopping distance.
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keep your brakes from locking up when you brake hard.
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reduce the perception distance.
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26.
What should you do if you doubt you have safe space to pass under a low bridge?
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Assume that the height posted at the bridges is correct.
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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Go slowly, and take another route if you are not sure you can make it.
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Increase the weight of your vehicle to clearing under the bridge.
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27.
Placards must be placed:
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less than 3 inches away from any other markings.
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so the words or numbers are read from right to left.
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so that the format, color, and message can only be seen by the driver.
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so the words or numbers are read from left to right.
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28.
How can you tell if your vehicle is equipped with ABS?
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Look for yellow ABS malfunction lamps on the instrument panel.
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Trailers will have yellow ABS malfunction lamps on the left side.
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Look under the vehicle for the wheel speed sensor wires coming from the back of the brakes.
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All of the above.
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29.
Empty trucks have the best braking. True or False?
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False.
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It depends on the truck.
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True.
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It depends on the cargo.
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30.
Which of the following hazard classes should NOT be placed into a temperature-controlled trailer?
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Classes 1, 3, and 4
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Classes 1, 2.1, and 3
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Classes 1, 3, and 5.1
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Classes 1, 4, and 5
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