You are driving on a Nevada highway and see a round sign ahead. What does this shape warn a driver about?
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A.
A railroad crossing ahead Correct
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B.
State route or interstate marker
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C.
School zone or crossing
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D.
Start of a no-passing zone
The answer is "A railroad crossing ahead"
The round highway sign in Nevada is the advance warning that a railroad crossing lies ahead. When you see this shape the manual instructs you to slow down and be ready to stop for a train. The wrong answers reflect confusion with other shape-to-meaning pairings on the standard sign list, such as the shield (route marker), pentagon (school), and pennant (no passing).
The traps in the wrong answers
B. State route or interstate marker
Confuses the round shape with the shield shape used for route markers. This answer confuses the round shape with the shield used to mark state and interstate routes.
C. School zone or crossing
Confuses the round shape with the pentagon used for school zones and crossings. This answer assumes the round sign flags a pedestrian-heavy area to slow for, missing that schools use the pentagon shape instead.
D. Start of a no-passing zone
Confuses the round shape with the pennant used for no-passing zones. This answer half-remembers that a distinctive non-rectangular sign marks the start of a no-passing zone, and reaches for the round shape by process of elimination.
This question tests your knowledge of Warning Signs in Nevada. Source: Nevada Driver Manual, "Railroad Crossings," p.33..
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