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Colorado Class R Knowledge Practice Test
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Passing target: 80% (24/30)
Observation, Speed & SpaceStandalone practice
How can a driver check a basic following interval in ordinary conditions?
Blue A follows silver B on a straight road. No time count, speed or gap ruler appears.
Correct answer: Count at least three seconds before reaching a point the car ahead passed.
Why
A timed interval expands with speed and gives the driver room to see, decide, and brake.
Verified against Colorado Driver Handbook · Three-second following check · p. 21
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