MI CDL COMBINATION TEST - PRACTICE TEST
11.
Fully loaded rigs:
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are just as likely to roll over as empty rigs.
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are less likely to roll over than empty rigs.
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are much more likely to roll over than empty rigs.
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12.
The two most important things that a driver can do to prevent a rollover when driving a combination vehicle are:
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Keeping cargo near center of vehicle and driving slowly on the highway
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Keeping cargo near the center of the vehicle and driving slowly on turns
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Driving slowly around turns and keeping the cargo as close to the ground as possible
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13.
If you're feeling tired while driving you should:
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stop driving and get some rest.
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eat something.
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drink coffee.
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14.
If the safety relief valve in the air brake system releases air:
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the valve is fully operational.
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this will supply more power to the brakes.
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something is wrong.
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15.
Which of the following is NOT a step in backing up with a trailer?
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Backing quickly when the path is straight
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Checking the outside mirrors on both sides frequently
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Looking at your line of travel before you begin
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16.
In combination vehicles with air brakes, the trailer air supply control should pop out when the air pressure falls within the range of:
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20 to 45 psi
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10 to 20 psi
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100 to 120 psi
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17.
You have uncoupled a trailer and want to inspect the landing gear. The tractor should be positioned:
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with the tractor frame under the trailer.
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with the tractor frame above the trailer.
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completely clear of the trailer.
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18.
During a trip:
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you should watch gauges to make sure that valve caps are not missing.
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you should watch gauges for signs of trouble.
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you should not watch gauges as they can be misleading.
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19.
The posted speed limit:
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should never be exceeded.
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may only be exceeded when driving in rural areas.
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should only be exceeded when passing other vehicles.
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20.
Before starting down a hill, you should:
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look for an escape route.
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slow down and shift to a lower gear.
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release the accelerator and shift to Neutral at the same time.
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