OKLAHOMA CDL COMBINATION PRACTICE TEST
11.
To avoid rollbacks when you start, you should:
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release the parking brake only when you have applied enough engine power.
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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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All of the above.
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12.
Strong winds can make it difficult to stay in your lane especially when driving:
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lighter vehicles.
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heavier vehicles.
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vehicles with ABS.
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13.
To prevent a rollover, you should keep the cargo as close to the ground as possible and:
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go slowly around turns.
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keep an eye on your tires.
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keep the vents clear so they work correctly.
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14.
You are inspecting your vehicle during a trip. What should you do?
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Use your senses to check for problems.
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Check critical items such as tires, brakes, and lights.
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All of the above.
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15.
The center of gravity of a trailer should be:
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at the rear of the trailer.
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as high as possible.
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as low as possible.
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16.
To avoid rollovers, you should drive slowly:
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around corners.
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on ramps.
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All of the above.
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17.
Which of the following makes a rollover more likely?
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If the load is to one side so it makes a trailer lean.
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Weight that is loaded so there is a high center of gravity.
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All of the above.
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18.
Which of the following trailers can get stuck on raised crossings?
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Lowboy
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Car carrier
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All of the above.
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19.
Which of the following makes a rollover more likely?
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Keeping the cargo as close to the ground as possible
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Driving quickly around turns
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Keeping the load centered on your rig
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20.
The tire load rating is stated:
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on each axle.
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inside the suspension system.
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on the side of each tire.
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