DE CDL AIR BRAKES PRACTICE TEST
21.
It may not be safe to operate at legal maximum weights:
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in hot weather.
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during bad weather or in mountains.
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on highways.
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on two-way streets.
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22.
The ________ brake system applies and releases the brakes when the driver uses the brake pedal during normal driving.
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anti-lock
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service
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parking
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emergency
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23.
Which of the following is not a braking system on a truck?
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Steering brake
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Service brake
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Emergency brake
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Parking brake
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24.
Perception Distance + Reaction Distance + Brake Lag Distance + Braking Distance = ?
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Stopping Distance - (minus) Brake Fade Distance
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Total Air Pressure
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Total Stopping Distance
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Partial Stopping Distance
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25.
To operate a vehicle equipped with air brakes, you must pass the air brakes knowledge test. Why?
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If you don't pass the air brakes test, you can't get a CDL.
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All trucks have air brakes.
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If you don't pass the air brakes test, you will be restricted to driving vehicles without air brakes.
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If you don't, you will only receive a CDL permit.
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