Alaska permit test: speed limits & control

Posted and basic speed laws, statutory limits and adjusting speed to conditions. 5 questions.

Question 1 of 5
Speed limits & controlAlaska rule

What is Alaska's speed limit in a residential district when no other limit is posted?

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Sample speed limits & control questions

  1. What is Alaska's speed limit in a residential district when no other limit is posted?

    • A 25 mph
    • B 20 mph
    • C 30 mph
    • D 15 mph
    Show answer

    A. 25 mph

    When no other limit is posted, Alaska's maximum is 25 mph in residential districts. Local authorities may post different limits, so always watch for signs.

    Source: State of Alaska Driver Manual, page 34

  2. What is the maximum speed in an Alaska alley unless posted otherwise?

    • A 10 mph
    • B 15 mph
    • C 20 mph
    • D 25 mph
    Show answer

    B. 15 mph

    Alleys have a 15 mph limit unless posted otherwise. They are narrow, with blind exits and people walking, so speeds must stay low.

    Source: State of Alaska Driver Manual, page 34

  3. On an Alaska roadway that is not a business district, residential district, alley, or school zone, and no limit is posted, what is the maximum speed?

    • A 65 mph
    • B 50 mph
    • C 55 mph
    • D 70 mph
    Show answer

    C. 55 mph

    On any other roadway the unposted maximum is 55 mph. Some selected highways may be posted at 65 mph, but only where signs say so.

    Source: State of Alaska Driver Manual, page 34

  4. If you double your speed from 20 mph to 40 mph, how does your braking distance change?

    • A It doubles
    • B It stays about the same
    • C It becomes about 4 times longer
    • D It becomes about 9 times longer
    Show answer

    C. It becomes about 4 times longer

    Impact and braking distance are 4 times greater at 40 mph than at 20 mph, and 9 times greater at 60 mph. Small increases in speed make crashes much more severe.

    Source: State of Alaska Driver Manual, page 33