COMBINATION TEST TENNESSEE - PRACTICE TEST
11.
When using a fire extinguisher, you should stay:
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as far away from the fire as possible.
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at whatever distance you think is safe.
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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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12.
After a tire has been changed, the driver should stop a short while later to:
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check tread separation.
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decrease tire pressure.
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check the tightness of the nuts.
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deflate the tire to 10 psi.
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13.
Which of the following will NOT help you prevent rollover?
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Keeping the cargo as close to the ground as possible.
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Driving slowly around turns.
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Using the controlled braking method.
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All of the above.
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14.
When you are uncoupling a loaded trailer, lower the landing gear until:
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the tractor frame is under the trailer.
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makes contact with the ground, and leave the trailer off the fifth wheel.
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the pressure in the system is above 55 psi.
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it makes firm contact with the ground.
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15.
A bridge formula permits less maximum axle weight for axles that:
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have poor weight balance
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have a high center of gravity
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are closer together
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are further apart than normal
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16.
During a trip:
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you should watch gauges for signs of trouble.
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you should watch gauges to make sure that valve caps are not missing.
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you should not watch gauges as they can be misleading.
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None of the above.
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17.
If the spring brakes do not release when you push the trailer air supply control, you should:
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rev or
lug the engine.
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check the electrical cables.
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pump the brakes.
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check the air line connections.
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18.
When driving in a construction zone, if a construction worker is near the road, you should:
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come to a complete stop.
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speed up.
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further reduce your speed.
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maintain a constant speed.
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19.
What should you do if your vehicle gets stuck on the railroad tracks?
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Turn on the emergency flashers and call 911.
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Get out of the vehicle and away from the tracks as quickly as possible, then call 911.
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Call 911, then get out of the vehicle and away from the tracks.
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Stay inside the vehicle and call 911.
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20.
If your vehicle is equipped with air brakes, loss of air pressure in the emergency line will cause:
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the trailer emergency brakes to come on.
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the vehicle to slide back and forth.
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the trailer supply valve to open.
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the springs to put on the brakes.
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