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UPGRADE TO CDL PREMIUM
1.
Do NOT use the parking brakes:
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when you leave your vehicle.
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if the brakes are very hot.
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when you park for less than two hours.
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2.
How can you tell if your vehicle is equipped with ABS?
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Look for yellow ABS malfunction lamps on the instrument panel.
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Trailers will have yellow ABS malfunction lamps on the left side.
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All of the above.
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3.
Vehicles with air brake systems take longer to come to a complete stop than vehicles with hydraulic brakes because of:
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brake lag.
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brake fading.
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reaction distance.
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4.
Air storage tanks:
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pump air into the 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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5.
When the spring brakes are on, you should never:
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change lanes.
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push the brake pedal down.
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upshift.
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6.
The spring brakes come on:
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when you bring the vehicle to a complete stop right away.
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when main air pressure is lost.
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when air pressure in both air brake systems rises to a value set by the manufacturer.
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7.
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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8.
Radial and bias-ply tires:
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should be used together only when driving in packed snow.
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should not be used together.
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should be used together.
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9.
When using a fire extinguisher, you should stay:
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as far away from the fire as possible.
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as close to the fire as possible, without getting burnt.
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at least 10 feet away from the fire.
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10.
A low air pressure warning signal is required on:
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all vehicles with air brakes.
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all vehicles with air brakes built after 2005.
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all vehicles with air brakes built after 2009.
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