IDAHO CDL AIR BRAKES PRACTICE TEST
6.
How can you tell if your vehicle is equipped with ABS (anti-lock braking system)?
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There is no way to tell, ABS is still optional on all vehicle types.
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Trucks, buses, trailers, and converter dollies built after 1998 are required to have ABS.
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ABS is required on all vehicles manufactured on or after 2000.
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7.
If the ABS is not working:
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you still have normal brake functions.
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the vehicle will have weak brakes.
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the vehicle will have no brakes.
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8.
Dual tires:
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should not come in contact with each other.
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should come in contact with each other whenever possible.
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should always come in contact with each other.
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9.
To control your speed on a downgrade, you should:
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use controlled braking.
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fully apply the brakes.
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use engine braking.
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10.
The safety valve is usually set to open at:
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200 psi
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150 psi
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125 psi
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