COMBINATION TEST CALIFORNIA - PRACTICE TEST
11.
Passive railroad crossings:
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do not have traffic control devices.
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should never be crossed using a CMV.
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have at least one traffic control device.
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12.
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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13.
A bridge formula permits less maximum axle weight for axles that:
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are closer together
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are further apart than normal
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have a high center of gravity
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14.
One way to prevent hydroplaning is to:
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have less than 4/32 inch tread depth in every major groove on front tires.
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make sure you have enough tread on your tires.
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take curves at higher speeds.
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15.
When checking the air and electric lines to the trailer, be sure that the air lines are properly connected to the gland hands, and are:
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secured with enough slack for turns.
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properly greased.
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secured with enough air leaks for turns.
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16.
_________ can make vehicle handling unsafe.
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Poor ventilation
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Poor weight balance
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Dry roads
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17.
After coupling the trailer, begin raising the landing gear by using:
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the crank handle.
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the low gear range.
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the high gear range.
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18.
The center of gravity of a trailer should be:
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as high as possible.
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at the rear of the trailer.
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as low as possible.
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19.
Who is responsible for inspecting the cargo?
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The shipper
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The driver
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The person who loaded and secured the cargo
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20.
Which of the following is NOT a good rule for using turn signals?
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Cancel your signal after you have turned.
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Signal continuously until you have completed the turn.
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Put your turn signal on after the turn.
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