You're driving on an Oregon road that doesn't fit any of the standard categories: not residential, not business district, not interstate, not posted. What speed limit applies?
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A.
35 mph
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B.
45 mph
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C.
55 mph Correct
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D.
65 mph
The answer is "55 mph"
Oregon's catch-all default is 55 mph. The manual lists 55 mph as the limit "On all roads and highways not meeting any other definition unless otherwise posted." Most rural state highways and unposted secondary roads default to this speed.
The traps in the wrong answers
A. 35 mph
35 mph has no statutory status in Oregon; it must be posted to apply. Misreading: Treats a common posted speed as a statutory default; the manual lists no 35 mph default category.
B. 45 mph
45 mph is not a statutory default in Oregon. Misreading: Invents a mid-range default; the manual's defaults are 15, 20, 25, and 55 mph, with no 45 mph tier.
D. 65 mph
65 mph is the typical default for rural interstates, not for general roads. It also requires posting. Misreading: Confuses interstate posted maximums with the catch-all default; the manual notes interstate limits vary and posts the 55 mph default for all other roads.
This question tests your knowledge of Speed Limits in Oregon. Source: Oregon Driver Manual, "Speed Regulations - Speed Limits," p.19..
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