NORTH DAKOTA CDL AIR BRAKES PRACTICE TEST
16.
Vehicles with air brakes require more stopping distance than vehicles with hydraulic brakes. Why?
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Stopping distance for vehicles with air brakes is made up of six different factors.
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Air brakes use different brake drums.
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It takes one half second or more for the air to flow through the lines to the brakes.
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When driving vehicles with air brakes, the average perception distance increases from 400 feet to 2200 feet.
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17.
The s-cam forces the brake shoes away from one another and presses them against the inside of the brake drum. It is called the s-cam because:
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it is a safe-driving brake.
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it applies a "Shock" to the brakes.
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it is shaped like the letter "S".
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"S" stands for "Shoes".
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18.
With the controlled braking method, you:
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apply the brakes as hard as you can without locking the wheels.
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apply the brakes all the way and release brakes when the wheels the lock up.
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push down on the brake pedal as hard as you can so that the wheels the lock up.
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None of the above.
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19.
Too little weight on the driving axles can cause:
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longer stopping distances.
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mechanical damage.
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poor visibility.
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poor traction.
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20.
To brake in a way that will keep your vehicle in a straight line and allow you to turn if it becomes necessary, you can use:
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the "controlled braking" method or the "stab braking" method.
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the "stab braking" method.
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the "controlled braking" method.
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None of the above.
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