AIR BRAKES PRACTICE TEST - MINNESOTA
11.
When driving in hot weather, drivers should inspect tires:
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every 4 hours or every 200 miles.
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every 3 hours or every 75 miles.
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every 2 hours or every 100 miles.
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every hour or every 50 miles.
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12.
The application pressure gauge shows:
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how much air pressure you are applying to the brakes.
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how much pressure is in the air tanks.
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how much pressure the relay valves should send to the trailer brakes.
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All of the above.
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13.
In air-operated disc brakes, the pressure of the ______ on the ______ turns a "power screw".
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brake chamber; slack adjuster
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slack adjuster; cam roller
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slack adjuster; tie rod
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brake camshaft; tie rod
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14.
Brake fade results from:
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excessive wear.
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excessive speeding.
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excessive use of the service brakes.
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excessive smoke.
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15.
You hear a loud "bang" which sounds like a tire blowout. You should:
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inspect your tires with your mirrors.
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keep driving as normal.
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check the tires at the next stop.
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assume you
have a tire failure.
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