COMBINATION PRACTICE TEST - UT CDL
11.
When you park trailers without spring brakes, you should use wheel chocks:
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to prevent the transmission from shifting up.
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to prevent overheating.
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to keep the trailer from moving.
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to prevent air from escaping.
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12.
At passive railroad crossings, even if there are active railroad signals that indicate the tracks are clear, you must _________ to be sure it is safe to proceed.
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go, look and put the transmission in neutral
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stop, look, and listen
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listen, look and stop
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go, stop and listen
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13.
Why should you cover your cargo?
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Because spill protection is a safety requirement in many states.
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To protect the cargo from weather.
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To protect people from spilled cargo.
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All of the above.
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14.
During your inspection, you should look into the fifth-wheel gap and check that the _________ are fully closed around the kingpin.
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lug nuts
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mounting bolts
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couplings (U-joints)
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locking jaws
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15.
When backing a trailer on a curved path you should back towards:
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neither side (back up straight).
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either side.
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the driver's side.
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the passenger's side.
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16.
Air brakes:
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are prohibited on larger vehicles.
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can improve fuel efficiency.
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should be used only when driving on wet roads.
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are an effective way to stop large and heavy vehicles.
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17.
Most truck driver deaths in crashes result from:
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driving side-by-side with another truck.
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truck rollovers.
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following too closely.
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off-tracking.
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18.
If your vehicle is equipped with air brakes, loss of air pressure in the
emergency line causes:
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the speed of your vehicle to increase.
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the trailer spring brakes to come on.
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the trailer emergency brakes to come on.
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All of the above.
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19.
A bridge formula permits:
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less maximum axle weight for axles that are far apart.
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less maximum axle weight for axles that are close together.
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more maximum axle weight for axles that are far apart.
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more maximum axle weight for axles that are closer together.
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20.
You are driving on a steep downgrade in the proper low gear. Your "safe" speed is 40 mph. When your speed reaches 40 mph, you should:
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apply the brakes to quickly reduce your speed to 25 mph, and then release the brakes.
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apply the brakes to gradually reduce your speed to 35 mph, and then release the brakes.
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increase your speed to approximately 45 mph, and then apply release the brakes.
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maintain your current speed, and apply the brakes when you reach 50 mph to gradually reduce your speed to 40 mph.
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