GENERAL KNOWLEDGE CDL TEST IOWA - PRACTICE TEST
21.
Which of the following are key steering system parts?
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Leaf spring, torque rod, front axle hanger
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Lug nuts, rims, tire
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Tie rod, drag link, spindle
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22.
Which of the the following statements about fatigued or drowsy driving is true?
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Most people are less alert between 12 pm and 3 pm.
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Fatigued drivers may be slower in making critical decisions.
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Fatigued drivers are usually more alert because they are aware risk of being involved in an accident is higher.
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23.
Containerized loads:
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must be inspected before and after the trip.
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are generally used for freight carried part way by rail or ship.
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should exceed gross weight and axle weight limits.
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24.
Front-end header boards:
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protect drivers from cargo in case of an accident or emergency stop.
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protect drivers from spilled cargo.
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should never be used.
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25.
On engine start, you should:
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check for minimum tread depth.
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check the oil level.
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make sure the oil pressure gauge is working.
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26.
Excessive use of the service brakes results in overheating. Too much heat can:
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cause the brakes apply unevenly.
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cause the brakes to grab.
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make the brakes stop working.
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27.
The best way to recover from a brake failure while going downhill is to:
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use engine braking.
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use the parking brake.
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use the escape ramp.
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28.
Before transporting sealed loads, you should check:
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a small sample of whatever is inside.
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the special transit permit.
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that you don't exceed gross weight and axle weight limits.
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29.
The minimum tire tread depth for all tires other than front tires is:
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1/32 inch
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4/32 inch
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2/32 inch
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30.
With a dual air brake system:
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each system shares the same lines and hoses.
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each system has its own air tanks, hoses and lines.
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each system shares air tanks.
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