MA CDL PRACTICE TEST - GENERAL KNOWLEDGE
31.
Hydroplaning:
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can occur at speeds as low as 30 mph.
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never occurs at speeds below 40 mph.
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only happens when tire pressure is higher than normal.
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only occurs at extremely high speeds.
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32.
The air tanks should be drained completely to remove:
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water and oil.
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the radiator cap.
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carbon monoxide.
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air.
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33.
After a tire has been changed, the driver should stop a short while later to:
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check tread separation.
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deflate the tire to 10 psi.
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check the tightness of the nuts.
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decrease tire pressure.
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34.
When driving in foggy conditions you should:
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slow down.
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flash your brake lights.
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drive on the shoulder.
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speed up.
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35.
To avoid becoming a distracted driver you should:
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adjust all vehicle controls and mirrors while driving.
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not turn off all communication devices.
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not engage in complex conversations with others.
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eat and drink while you drive.
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36.
As long as the engine is not overheated, it is safe to remove the radiator cap.
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True, as long as you are wearing gloves.
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True.
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False.
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True, unless you can touch the radiator cap with your bare hand.
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37.
If you expect to operate in both excepted and non-excepted intrastate commerce, what type of commercial operation should you disclose?
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Standard
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Either excepted or non-excepted
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Non-excepted
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Excepted
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38.
To avoid rollbacks when you start, you should:
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put on the parking brake whenever necessary.
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if you have manual transmission, partly engage the clutch before you take your right foot off the brake.
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release the parking brake only when you have applied enough engine power.
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All of the above.
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39.
When driving a 50 foot vehicle at 50 mph, how much space should you keep in front of you?
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5 seconds
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4 seconds
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6 seconds
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3 seconds
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40.
When steering to avoid a crash, you should:
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lock your wheels while turning.
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not turn any more than needed to clear the hazard.
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apply the brake while you are turning.
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accelerate and steer at the same time.
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