MARYLAND CDL PRACTICE TEST - GENERAL KNOWLEDGE
21.
What should you do if you doubt you have safe space to pass under a low bridge?
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Increase the weight of your vehicle to clearing under the bridge.
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Go slowly, and take another route if you are not sure you can make it.
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If no warnings are posted, assume there is enough clearance under the bridge and proceed slowly.
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Assume that the height posted at the bridges is correct.
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22.
You should hold your steering wheel:
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with both hands on the same side of the wheel.
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gently with both hands.
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firmly with both hands.
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firmly with one hand.
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23.
To apply the parking brakes:
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place the parking brake control knob in Neutral.
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push the brake pedal three times.
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pull the parking brake control knob out.
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push the parking brake control knob in.
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24.
Which of these should make you reject a vehicle until it is rectified?
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Tires from different manufacturers
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Tires of different sizes
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Tires with different tread patterns
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All of the above.
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25.
Water
in the brakes can cause the brakes to:
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fade.
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break.
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overheat.
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be weak or apply unevenly.
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26.
If are being followed closely, you should:
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decrease your following distance.
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increase your following distance.
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change lanes quickly.
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flash your brake lights.
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27.
Which of the following are possible causes of tire fires?
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Over-inflated tires and short circuits.
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Under-inflated tires and dual tires that touch.
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Improperly loaded cargo and dual tires that touch.
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Loose fuel connections or under-inflated tires.
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28.
You are more at risk of being fatigued:
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after getting more than 8 hours of sleep.
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when driving during the day.
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when stopping periodically during long trips.
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when driving alone.
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29.
To prevent your vehicle from rolling back when you start you should:
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release the parking brake, then apply enough engine power to keep from rolling back.
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put the transmission in Neutral.
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partly take your right foot off the brake before you engage the clutch.
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partly engage the clutch before you take your right foot off the brake.
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30.
In an emergency, if you have to drive off the road you should:
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avoid using the brakes until your speed has dropped.
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stay on the shoulder (if possible) until your vehicle has come to a stop.
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keep one set of wheels on the pavement, if possible.
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All of the above.
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