In Oregon, what is the default speed limit in a residential district when no other speed is posted?
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A.
15 mph
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B.
20 mph
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C.
25 mph Correct
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D.
55 mph
The answer is "25 mph"
Oregon law sets a 25 mph default in residential districts (and in public parks and on permitted ocean shores). The default applies wherever the area meets the statutory definition of a residential district, even if no speed limit sign is posted.
The traps in the wrong answers
A. 15 mph
15 mph is the default for alleys and narrow residential areas, not standard residential districts. Misreading: Treats the 15 mph alleys / narrow-residential-areas default as the standard residential-district default.
B. 20 mph
20 mph applies in any business district and within school speed zones, not residential districts. Misreading: Applies the 20 mph business-district and school-speed-zone default to residential districts.
D. 55 mph
55 mph is the catch-all default for roads and highways not meeting any other definition; a residential district has its own 25 mph default. Misreading: Applies the 55 mph catch-all default for roads not meeting any other definition to an unposted residential district, which the manual covers with its own 25 mph default.
This question tests your knowledge of Speed Limits in Oregon. Source: Oregon Driver Manual, "Speed Regulations, Speed Limits," p.19..
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