When tank pressure falls below 120 psi.
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When tank pressure falls below 60 psi.
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When tank pressure falls below 10 psi.
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When tank pressure falls below 5 psi.
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Number of questions: | 25 |
Passing score: | 20 |
When tank pressure falls below 120 psi.
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When tank pressure falls below 60 psi.
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When tank pressure falls below 10 psi.
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When tank pressure falls below 5 psi.
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10 psi
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25 psi
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50 psi
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100 psi
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On the rear
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On the left side
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On the front
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On the top
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Look under the trailer for wheel speed sensors coming from the back of the brakes.
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Look under the hood for the ABS sticker.
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Look at the tires.
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Remove a tire and look for the ABS sensor on the axle.
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Park on a hill and test the brakes.
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Put on gloves and push in the slack adjusters.
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Remove the drum and look inside.
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Chock the wheels and disengage the parking brake.
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By tapping on the brake pedal three times
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By pushing in the brake control knob
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By engaging the accelerator
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By tapping the accelerator twice
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