CDL PRACTICE TEST (ID) - GENERAL KNOWLEDGE TEST
41.
The application pressure gauge:
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protects the tank and the rest of the system from too much pressure.
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shows how much air pressure is being applied to the brakes.
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tells you how much pressure is in the air tanks.
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42.
Objects that have fallen on the road:
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can be a danger to your tires and wheel rims.
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can be hazards.
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All of the above.
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43.
The minimum amount of tread for rear tires is:
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1/64 of an inch
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1/32 of an inch
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2/32 of an inch
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44.
The Gross Vehicle Weight Rating (GVWR) is:
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the value specified by the manufacturer as the loaded weight of a vehicle, including cargo and trailers.
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the value specified by the manufacturer as the loaded weight of a single vehicle.
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the value specified by the manufacturer as the loaded weight of a combination vehicle.
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45.
At highway speeds, good drivers look at least _______ ahead.
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1 mile
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1/4 mile
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150 feet
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46.
Name two situations in which it may not be safe to operate your vehicle at legal maximum weights.
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In heavy traffic or at night
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During bad weather or in mountains
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Over bridges or through tunnels
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47.
Which of the following factors is NOT used to determine your safe speed when going down a long steep downgrade?
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Total weight of the vehicle and cargo
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Weather
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Time of day
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48.
When you push the brake pedal down, air brakes work:
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after about 15 seconds.
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after a short delay.
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immediately.
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49.
Under-loaded front axles can:
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cause poor traction.
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make the steering axle weight too light to steer safely.
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All of the above.
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50.
When backing a trailer, you should turn the steering wheel to the right to make the trailer go left (or vice versa). Once the trailer starts to turn, you should:
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turn the wheel more in the direction you want to go.
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turn the wheel the other way to follow the trailer.
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keep backing up.
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