Front and rear turn signals on a passenger vehicle must be visible from at least how many feet?
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A.
300 feet Correct
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B.
500 feet
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C.
100 feet
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D.
200 feet
The answer is "300 feet"
Turn signals must be visible from 300 feet on both the front and rear of the vehicle. A driver who picks 500 feet has substituted the taillight-visibility figure, because taillights and turn signals both light up the rear of the car and get treated as one rule.
The traps in the wrong answers
B. 500 feet
This answer applies the taillight rule to turn signals, which the manual assigns a shorter distance. It assumes any rear-facing warning light on the car meets one visibility standard, so the 500-foot taillight number gets transplanted onto turn signals.
C. 100 feet
This answer undershoots the 300-foot visibility distance the manual sets for turn signals. It estimates blinker range from how bright the light looks at close range, not the distance the manual requires for approaching traffic to see the signal.
D. 200 feet
This answer substitutes the horn-audibility or rearview-mirror distance for the turn-signal rule. It reaches for the 200-foot number attached to the horn and the rearview mirror when the specific turn-signal figure will not surface.
This question tests your knowledge of Vehicle Equipment in Illinois. Source: Illinois Rules of the Road, "Chapter 12: Equipment For Safe Driving, Required Equipment, Turn signals," p.92..
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