CDL AIR BRAKES PRACTICE TEST - IOWA
11.
If your vehicle has an alcohol evaporator, every day during cold weather, you should:
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fill it up with oil to prevent alcohol from freezing.
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fill it up with oil to prevent the pipes from freezing.
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check the alcohol container and fill up as necessary.
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12.
You are going down a steep grade. Once the vehicle is in the proper low gear, you should brake just hard enough to feel a slowdown, and then release the brakes when your speed has been reduced to ____ below your safe speed.
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5 mph
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10 mph
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15 mph
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13.
When you apply the brakes, the brake shoes and linings are pushed against:
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slack adjusters.
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the s-cam.
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the inside of
the brake drum.
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14.
Radial and bias-ply tires:
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should be used together.
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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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15.
When the spring brakes are on, you should push the brake pedal down:
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Never.
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Only when driving uphill.
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Only when driving downhill.
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