DE CDL GENERAL KNOWLEDGE TEST - CDL PRACTICE TEST
41.
When feeling fatigued you should:
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drink a cup of coffee.
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increase your speed to get to your destination faster.
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continue driving.
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stop and rest.
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42.
When driving in hot weather, drivers should inspect tires:
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every 3 hours or every 75 miles.
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every hour or every 50 miles.
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every 2 hours or every 100 miles.
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every 4 hours or every 200 miles.
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43.
When you are driving you should look at least ______ ahead.
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20 to 30 seconds
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5 to 10 seconds
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12 to 15 seconds
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6 to 12 seconds
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44.
To know when it's time to shift up:
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use mirrors on both sides.
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check the user manual.
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use engine speed and road speed.
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watch your tachometer, and shift up when your engine reaches the bottom of the range.
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45.
Which of the following is NOT a warning sign of fatigue?
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Adjust your speed depending on driving conditions
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Missing exits
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Difficulty focusing
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Rubbing eyes
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46.
You are more at risk of being fatigued:
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when driving during the day.
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when driving alone.
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when stopping periodically during long trips.
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after getting more than 8 hours of sleep.
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47.
When more cargo is piled up in a truck, the center of gravity moves:
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higher up from the road.
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to the left side of the truck.
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closer to the ground.
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to the right side of the truck.
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48.
If you are involved in a collision and not seriously hurt, you should:
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protect the area.
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do your best to care for the injured.
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notify the authorities.
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All of the above.
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49.
Which of the following is NOT correct? An ABS system:
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helps you stop faster.
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is a safety anti-skid braking system.
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reduces the braking pressure to a safe level.
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helps you avoid wheel lock up.
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50.
Most heavy-duty vehicles use:
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pump-the-brake systems.
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dual air brake systems.
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single air brake systems.
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triple air brake systems.
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