CDL AIR BRAKES PRACTICE TEST - ARIZONA
16.
When driving in a construction zone, if a construction worker is near the road, you should:
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further reduce your speed.
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maintain a constant speed.
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come to a complete stop.
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17.
In a vehicle with a dual air brake system:
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each system has its own air tanks.
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one system supplies air to the trailer.
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both systems typically operate the regular brakes on the rear axle.
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18.
You should NOT use the parking brakes if:
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the brakes are very hot.
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the brakes are cold.
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the brakes are too dry.
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19.
The air tanks should be drained completely to remove:
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air.
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water and oil.
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carbon monoxide.
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20.
You must take the CDL skills tests in the type of vehicle for which you wish to be licensed. If your test vehicle does not have air brakes:
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you'll need to take another knowledge test about air brakes.
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you will be restricted to driving vehicles without air brakes.
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you'll have to immediately retake your test using another vehicle.
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