AK CDL COMBINATION TEST - PRACTICE TEST
11.
Which of the following statements about off-tracking is true?
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Longer vehicles off-track less.
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When a vehicle goes around a corner, the rear wheels follow the same path as the front wheels.
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If there is more than one trailer, the rear wheels of the last trailer will off-track the most.
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12.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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relying too much on the engine braking effect.
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excessive downshifting.
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loss of hydraulic pressure.
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13.
A vehicle inspection should be done in the same order each time:
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so you are less likely to forget something.
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because the report must be written in that order.
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because it is required by law.
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14.
Off-tracking is:
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when a vehicle towing a trailer skids, and the trailer pushes the towing vehicle from behind until it spins the vehicle around.
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when the tires lose their contact with the road and have little or no traction.
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when a vehicle makes a turn and the rear wheels of the trailer end up driving in a different path than the tractor and the front wheels of the trailer.
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15.
A bridge formula permits less maximum axle weight for axles that:
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have a high center of gravity
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are closer together
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are further apart than normal
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16.
When driving on slippery roads, you should NOT:
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try to anticipate stops early.
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go slowly.
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use the engine brake.
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17.
Blocking _______________ to keep it from sliding.
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is used only in the back of a piece of cargo
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is used in the front, back, and/or sides of a piece of cargo
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goes from the upper part of the cargo to the floor
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18.
By pushing the trailer air supply control knob in, you:
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supply the trailer with air.
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shut the air off and put on the trailer emergency brakes.
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supply the tires with air.
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19.
As you approach off ramps and on ramps, remember:
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to always brake and turn at the same time.
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that the posted speed limit may not be safe for larger vehicles.
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that downgrades make it easier to reduce speed.
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20.
In your mirror, you see a car approaching from the rear. The next time you check your mirror, you don't see the car. If you wish to change lanes, you should:
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assume the car left the roadway and change lanes as normal.
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ease into the other lane slowly so the other car can get out of the way.
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wait until you are sure the car isn't in your blind spot.
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