COMBINATION PRACTICE TEST - IA CDL
11.
A burning tire must be:
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immediately removed from the vehicle.
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covered with cloth.
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cooled with water.
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12.
If you are being tailgated, you should:
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speed up.
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try to let the other vehicle pass.
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drive on the shoulder.
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13.
How many red reflective triangles should you carry?
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3
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5
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2
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14.
When looking at your cargo covers in the mirrors while driving, you must be aware that a flapping cover:
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helps keep the cargo as close to the ground as possible.
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keeps the cargo cool.
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can tear loose, uncovering the cargo.
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15.
You are driving a combination vehicle and must use your brakes to avoid a crash. You should:
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use stab braking or controlled braking.
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push the brake pedal as hard as you can and hold it there.
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brake lightly and hold the steering wheel firmly.
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16.
If a load is 10 feet long, the minimum number of tie-downs required is:
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3
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1
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2
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17.
To stop a trailer skid, you should:
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use the trailer hand brake to straighten out the rig.
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release the brakes to get traction back.
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use the brakes to slow down.
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18.
If your truck catches fire, the first thing you should do is to:
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pull off the road and park in an open area.
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pull into a service station and call for help.
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get the vehicle off the road and park near other vehicles.
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19.
If your vehicle is equipped with air brakes, loss of air pressure in the
emergency line causes:
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the speed of your vehicle to increase.
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the trailer spring brakes to come on.
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the trailer emergency brakes to come on.
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20.
Tests have shown that trucks with a high center of gravity are more likely to tip over, therefore you should:
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distribute the cargo as low as possible.
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put the lightest parts of the cargo under the heaviest parts.
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All of the above.
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