CDL COMBINATION PRACTICE TEST MONTANA
11.
If your truck catches fire, the first thing you should do is to:
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get the vehicle off the road and park near other vehicles.
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pull off the road and park in an open area.
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get off the vehicle, open the hood and start shooting foam to keep the engine cool.
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pull into a service station and call for help.
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12.
You are checking the tractor-trailer connection to make sure it is safe and secure. The landing gear should be:
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fully lowered.
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fully raised.
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raised slightly off the ground.
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None of the above.
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13.
Combination vehicles _________ than single CMVs.
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are safer in bad weather
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require more driving skill
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are much easier to drive
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All of the above.
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14.
Which of these statements is true?
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"Bobtail" tractors can take longer to stop than a combination vehicle loaded to maximum gross weight.
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Trailer skids are more likely to happen when the trailer is empty or lightly loaded.
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Large combination vehicles take longer to stop when they are fully loaded than when they are empty.
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All of the above.
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15.
Most heavy-duty vehicles use:
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air brakes.
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pressure brakes.
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solid brakes.
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hydraulic brakes.
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16.
You are coupling a tractor to a semi-trailer. You have backed up but are not yet under the trailer. Before backing under the semi-trailer, you should:
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connect the electrical cord and check the air lines.
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remove the wheel chocks.
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supply air to the trailer system and lock the trailer brakes.
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begin raising the landing gear.
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17.
If your ABS is not working:
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the drive wheels will begin to spin, and you should take your foot off the accelerator.
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you should immediately bring your vehicle to a complete stop.
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it will slow your truck to a halt and force you to pull over.
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you still have normal brake functions, and should drive and brake as you always have.
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18.
What are the two basic reasons for covering cargo?
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To protect the cargo from weather and to avoid littering.
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To protect people from spilled cargo and the cargo from pilferage.
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To protect people from spilled cargo and the cargo from weather.
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To protect the cargo from pilferage and from weather.
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19.
When approaching a stopped bus, you must be aware that:
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passengers crossing in front of the bus can always see you.
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passengers may cross in front of or behind the bus.
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passing a stopped bus is illegal.
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a student may be driving the bus.
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20.
After a tire has been changed, you should:
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deflate the tire to 15 psi.
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stop a short while later and check that the nuts are tight.
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decrease tire pressure.
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wait at least 30 minutes before driving.
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