TX CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
31.
Which of the following is a common cause of fire?
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Improperly sealed cargo.
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Short circuits due to loose connections.
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Under-inflated tires and duals that touch.
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All of the above.
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32.
When checking the engine compartment:
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the parking brake should be on.
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wheels should not be chocked.
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you should put the gearshift in neutral.
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the engine should be running.
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33.
Hanging meat in a refrigerated truck can be:
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a very unstable load with a low center of gravity.
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a very stable load with a low center of gravity.
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a very unstable load with a high center of gravity.
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a very stable load if properly distributed.
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34.
To avoid becoming distracted while driving, you should:
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pre-program your favorite radio stations.
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familiarize yourself with your vehicle's features within the first 10 miles of driving.
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be careful when reading a text message on your mobiledevice while driving.
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All of the above.
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35.
When driving in work zones you should:
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Drive slowly and carefully.
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Observe the posted speed limits at all times.
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Use your four-way flashers or brake lights to warn drivers behind you.
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All of the above.
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36.
The air compressor governor:
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stops the compressor from pumping air.
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allows the compressor to start pumping air when the tank pressure rises to the "cut-out" pressure.
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controls when the air storage tanks will pump air into the air compressor.
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All of the above.
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37.
Driving at night is _______ driving during the day.
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about the same as
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more dangerous than
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safer than
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None of the above.
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38.
To calculate how much space you should keep in front of you:
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count off the seconds until you pass a pavement marking, or some other clear landmark.
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count off the seconds from when the vehicle ahead of you passes some clear landmark to when you reach that same landmark.
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count off the seconds until you reach the vehicle ahead.
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add 4 seconds for each 10 feet of vehicle length at speeds below 40 mph.
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39.
When driving in heavy traffic, the safest speed is:
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the speed of other vehicles, up to the posted limit.
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slower than the speed of the traffic.
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5 mph below the posted speed limit.
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the posted speed limit.
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40.
Passive railroad crossings:
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have at least one traffic control device.
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do not have traffic control devices.
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should never be crossed using a CMV.
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usually have a person directing traffic.
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