CDL PRACTICE TEST (ID) - GENERAL KNOWLEDGE TEST
11.
Checking your vehicle's suspension system includes checking:
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the mounting brackets.
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the tires.
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the air suspension systems.
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12.
What is the most important hand signal you should agree on with a helper?
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Go forward
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Stop
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Keep backing
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13.
The best way to test the trailer service brakes is to:
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pull forward quickly, then apply the trailer brakes with your hand control.
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accelerate to the maximum possible speed, then apply the trailer brakes fully.
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None of the above.
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14.
Which of these should you check before driving in winter?
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Coolant level and antifreeze amount
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Defrosters
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All of the above.
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15.
You should downshift in advance before:
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entering a tunnel.
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starting down a hill or entering a curve.
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crossing a bridge.
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16.
If you are traveling at 55 mph in a 30 foot vehicle, how many seconds of following distance should you have?
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3 seconds
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4 seconds
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5 seconds
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17.
Which of the following is a good way to avoid becoming an aggressive driver?
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Be realistic about your travel time.
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Keep your following distance reasonable.
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All of the above.
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18.
With an engine fire, you should NOT:
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open the hood.
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shoot foam from the vehicle’s underside.
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turn the engine off as soon as possible.
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19.
When checking tires, which of the following is not a problem?
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Cracked valve stems
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Too much air pressure
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4/32 inch tread depth on front tires
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20.
Which of the following is considered a serious traffic violation?
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Reckless driving
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Following a vehicle too closely
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All of the above
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