CDL AIR BRAKES PRACTICE TEST - ARKANSAS
21.
ABS malfunction lamps are located:
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on the driver'door.
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on the instrument panel.
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under the hood.
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None of the above.
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22.
The most common foundation brakes found on vehicles with air brakes are the:
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S-cam brakes.
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parking brakes.
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wedge brakes.
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disc brakes.
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23.
If your truck catches fire, the first thing you should do is to:
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get off the vehicle, open the hood and start shooting foam to keep the engine cool.
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get the vehicle off the road and park near other vehicles.
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pull off the road and park in an open area.
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pull into a service station and call for help.
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24.
If the safety relief valve in the air brake system releases air:
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this will supply more power to the brakes.
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this will supply more power to the drive wheels.
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the valve is fully operational.
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something is wrong.
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25.
The safety valve is usually set to open at:
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75 psi.
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150 psi.
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200 psi.
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100 psi.
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