COMBINATION PRACTICE TEST - ME CDL
11.
Which of the following is not a reason for covering cargo?
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To protect people from spilled cargo
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To prevent other drivers from looking at the cargo
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To protect the cargo from weather
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12.
If a trailer does not have spring brakes, to keep the trailer from moving you should:
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use wheel chocks.
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park on a slight decline.
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use the service brakes.
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13.
How many red reflective triangles should you carry?
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2
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3
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5
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14.
If you begin to feel drowsy while driving, you should:
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get some coffee.
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pull off the road and get some rest.
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get an energy drink.
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15.
When the wheels of a trailer lock up, the trailer will tend to swing around. This is more likely to happen when:
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the trailer is overloaded.
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the trailer is fully loaded.
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the trailer is empty or lightly loaded.
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16.
Most hydraulic brake failures occur for one of two reasons, one of which is:
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loss of hydraulic pressure.
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excessive downshifting.
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relying too much on the engine braking effect.
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17.
To prevent a rollover, you should keep the cargo as close to the ground as possible and:
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keep the vents clear so they work correctly.
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go slowly around turns.
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keep an eye on your tires.
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18.
Whenever you back up with a trailer, position your vehicle so you can back in a straight line. If you must back on a curved path, back toward:
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Either side.
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the driver's side.
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the right side.
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19.
When backing, as soon as you see the trailer getting off the proper path, you should:
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turn the top of the steering wheel in the direction of the drift.
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turn the top of the steering wheel in the opposite direction of the drift.
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to keep a firm grip on the steering wheel and continue backing.
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20.
Under-loaded front axles can:
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make the steering axle weight too light to steer safely.
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cause poor traction.
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All of the above.
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