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New Mexico Class D Written Test Practice
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Passing target: 70% (21/30)
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At 55 mph, you want to cut into the gap in front of a loaded tractor-trailer and then slow for your exit. About how far could that truck need to stop?
Correct answer: Almost 800 feet, about twice what a car needs.
Why
Because big rigs and RVs need so much more room to stop, do not pull in front of one and then slow down or stop suddenly; the driver may not be able to stop in time. Pass a large truck on the left and move well ahead of it before you change back into its lane. A big truck may also be moving faster than it looks.
Verified against New Mexico Driver Manual · Large-truck braking · p. 30
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