ARIZONA CDL AIR BRAKES PRACTICE TEST
6.
If a load is 10 feet long, the minimum number of tie-downs required is:
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1
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2
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3
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7.
Most heavy vehicles require ________ change gears.
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single clutching
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double shifting
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double clutching
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8.
Excessive use of the service brakes results in overheating and leads to:
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reduction of the brake drums.
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poor traction.
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brake fade.
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9.
Overloading a vehicle with cargo can have negative effects on all of the following except:
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Weight limits
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Braking
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Steering
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10.
Emergency brakes and parking brakes must be held on by:
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hydraulic pressure.
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air pressure.
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mechanical force.
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