New Jersey Basic Auto Learner Permit Practice Test
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Passing target: 80% (40/50)
It is raining hard at night on a road posted at 50 mph. Your wipers are on, but you can see only a short way ahead. How should you choose your speed?
A drives on a dark road in heavy rain. The card gives the posted limit as 50 mph and states that the wipers are on and visibility is short.
Correct answer: Slow to a speed that lets you see clearly, react and stop in the space ahead.
Why
Rain reduces tire grip, and headlights and wipers cannot restore normal visibility, so the distance you need to stop grows while the distance you can see shrinks. New Jersey law requires a reduced speed when weather or road conditions create a special hazard, even below the posted limit. Increase your following distance as well.
Verified against New Jersey Driver Manual · Speed Control · p. 65
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