IOWA CDL AIR BRAKES PRACTICE TEST
16.
To control your speed on a downgrade, you should:
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use engine braking.
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use controlled braking.
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fully apply the brakes.
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17.
You hear a loud "bang" which sounds like a tire blowout. You should:
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keep driving as normal.
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assume you
have a tire failure.
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check the tires at the next stop.
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18.
Vehicles with ABS have ______ ABS malfunction lamps on the instrument panel.
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orange
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yellow
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green
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19.
If your truck catches fire, the first thing you should do is to:
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get the vehicle off the road and park near other vehicles.
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pull into a service station and call for help.
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pull off the road and park in an open area.
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20.
Air storage tanks:
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use parts of the service brake systems to stop the vehicle in a brake system failure.
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hold compressed air for the brakes.
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pump air into the air storage tanks.
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