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Montana Class D Knowledge Test Practice
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Observation, Speed & SpaceStandalone practice
You drive a car on an interstate highway in rural Montana, far from any large city. No lower limit is posted. What is the speed limit?
Correct answer: 80 mph at all times
Why
Some interstate sections are posted lower, for example 75 mph, and a posted limit controls. Near Billings, Great Falls and Missoula, the interstate limit is 65 mph. At any posted limit, you must drive slower when weather, traffic or visibility makes that speed unsafe.
Verified against Montana Driver Manual English · Speed Limits · p. 48
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