CDL COMBINATION PRACTICE TEST WEST VIRGINIA
11.
_________ can make vehicle handling unsafe.
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Poor weight balance
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Dry roads
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ABS
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Poor ventilation
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12.
An Anti-lock Braking System:
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increases a vehicle's stopping power.
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lets you brake faster.
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increases the distamce required to stop on slippery surfaces.
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keeps your wheels from locking when you brake hard.
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13.
Which of the following is NOT part of checking the sliding fifth-wheel?
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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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Testing the tractor protection valve
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Checking that all locking pins are present and locked in place
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14.
Which of the following will NOT help you prevent rollover?
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Keeping the cargo as close to the ground as possible.
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Using the controlled braking method.
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Driving slowly around turns.
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All of the above.
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15.
You are inspecting your vehicle during a trip. What should you do?
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Watch gauges for signs of trouble.
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Check critical items such as tires, brakes, and lights.
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Use your senses to check for problems.
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All of the above.
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16.
The best way to recognize that your trailer has started to skid is:
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by seeing it in your mirrors.
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by hearing squeaking noises from the wheels.
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by using retarders.
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None of the above.
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17.
Most heavy vehicles require ________ change gears.
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single clutching
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double shifting
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triple shifting
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double clutching
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18.
You are driving a modern truck with a manual transmission. When going down a hill you should usually:
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use the same gear you would use to go up the hill.
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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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downshift after your
speed has already built up.
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19.
To avoid rollbacks when you start, you should:
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if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
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release the parking brake only when you have applied enough engine power.
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put on the parking brake whenever necessary.
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All of the above.
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20.
Dual tires:
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should always come in contact with each other.
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should come in contact with each other whenever possible.
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should not come in contact with each other.
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are dangerous.
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