Unless an official traffic control device says you may, you may not pass within how many feet of an intersection or railroad grade crossing?
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A.
200 feet
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B.
500 feet
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C.
50 feet
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D.
100 feet Correct
The answer is "100 feet"
The manual sets a 100-foot no-passing zone around any intersection or railroad grade crossing because cross traffic can appear with no warning, and the only exception is when an official traffic control device says passing is allowed. The 500 feet in B carries over from the U-turn sight-distance figure earlier in the same chapter and is applied to a rule it does not belong to.
The traps in the wrong answers
A. 200 feet
Doubles the manual's exclusion zone, which is set at 100 feet for intersections and rail crossings. This answer rounds the 100-foot figure up on the guess that a longer buffer must be safer.
B. 500 feet
500 feet is far beyond the 100-foot no-passing zone in the manual and belongs to a different driving rule, not this passing restriction. This answer borrows the 500-foot U-turn sight-distance figure from earlier in the same chapter.
C. 50 feet
Half of the manual's exclusion zone would still put your pass inside the danger area near an intersection or rail crossing. This answer halves the manual figure on the intuition that a shorter buffer is enough at quieter intersections.
This question tests your knowledge of Passing in Pennsylvania. Source: Pennsylvania Driver Manual, "You May Not Pass If," p.47..
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