CDL General Knowledge Test (Illinois) - Practice Test
41.
Driving dry bulk tanks requires special care. Why?
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The load can shift.
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Their weight and size can make it more difficult to stop quickly.
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They have a high center of gravity.
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All of the above.
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42.
To test the service brake:
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push the brake pedal firmly while going about 5 mph.
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shift your transmission to a low gear, pump the brake pedal three times, then hold it down for five seconds.
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push the brake pedal firmly while slowly moving backward.
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gently try to pull forward with the trailer parking brake on, then release the brake.
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43.
You are more at risk of being fatigued:
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when driving alone.
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after getting more than 8 hours of sleep.
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when stopping periodically during long trips.
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when driving during the day.
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44.
If your brakes fail on a steep mountain downgrade, you should:
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slow down until your vehicle comes to a complete stop.
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decide what to do as soon as you know your brakes do not work.
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stay on the road and keep looking for the next available escape ramp.
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set the parking brake and park in an open area.
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45.
When faced with an emergency, drivers should:
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immediately drive to the nearest police station.
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make a U-turn and go in the opposite direction.
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drive away as quickly as possible.
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come to a stop if it is safe to do so.
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46.
Which of the following is NOT one of the four a basic skills needed to operate a commercial vehicle?
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Ability to back the vehicle safely
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Ability to steer
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Ability to accelerate
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Ability to multitask while driving
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47.
In a dual air brake system, if one air system is very low on pressure:
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the effect won't be noticeable for the first 50 miles.
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you should pump the brakes to restore pressure.
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either the front or rear brakes will not be operating fully.
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you should drive and brake as you always have.
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48.
Which of the following should be checked for looseness, sticking, damage, or improper setting?
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Clutch
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Accelerator
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Steering wheel
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All of the above.
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49.
After beginning a trip, you should inspect your cargo:
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within the first 50 miles.
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within the first 100 miles.
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during your first rest stop.
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before the last 25 miles.
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50.
To prevent rollover, you should:
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place the cargo near the rear of the trailer.
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put the lightest parts of the cargo under the heaviest parts.
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keep the cargo as close to the ground as possible.
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place the cargo near the front of the trailer.
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