CDL PRACTICE TEST - GENERAL KNOWLEDGE (NEW JERSEY)
41.
Air pressure should build up in a single air system, within about:
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10 minutes.
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3 minutes.
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15 minutes.
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1 minute.
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42.
If you find anything unsafe during the pre-trip inspection, you are required to:
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get it fixed before driving.
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write it in your inspection report.
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inform your motor carrier after the trip.
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drive cautiously until it is fixed.
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43.
Which of the following is NOT true?
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ABS will change the way you normally brake.
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ABS only comes into play when a wheel would have locked up because of over braking.
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ABS won't compensate for bad brakes.
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ABS won't compensate for poor brake maintenance.
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44.
If your vehicle thumps or vibrates heavily, it may be a sign that:
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you need to shift up.
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the brakes have failed.
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one of the tires has gone flat.
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the engine belt is loose.
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45.
To prevent fire, during the en route inspection you should check the tires, wheels, and truck body for signs of:
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heat.
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front-wheel skids.
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a fire extinguisher.
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ice.
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46.
To calculate how much space you should keep in front of you:
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add 4 seconds for each 10 feet of vehicle length at speeds below 40 mph.
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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 pass a pavement marking, or some other clear landmark.
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count off the seconds until you reach the vehicle ahead.
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47.
To avoid becoming distracted while driving, you should:
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plan your route before you begin driving.
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adjust all vehicle controls and mirrors prior to driving.
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clear the vehicle of any unnecessary objects.
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All of the above.
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48.
Air brakes:
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should be used only when driving on wet roads.
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are prohibited on larger vehicles.
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can improve fuel efficiency.
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are an effective way to stop large and heavy vehicles.
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49.
Strong winds can make it difficult to stay in your lane especially when driving:
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lighter vehicles.
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heavier vehicles.
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vehicles with ABS.
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flatbed trailers.
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50.
The Gross Combination Weight (GCW) is:
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the total weight of a single vehicle including its load.
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the weight of the vehicle, trailer, and cargo.
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the weight of the vehicle and its trailer(s).
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the weight of the trailer and cargo.
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