Amtrak Signal Maintenance Level 1 Practice Test 2026 – Complete Exam Prep

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What is limited speed?

Passenger not exceeding 45 mph, freight 40 mph

Limited speed is the reduced maximum speed imposed in certain track conditions or temporary restrictions where normal running speeds can’t be safely maintained. In this context, the defined limits are 45 mph for passenger trains and 40 mph for freight trains. The difference reflects the greater braking and stability considerations for heavier freight trains, so they must operate slightly slower. The other choices propose speed limits that aren’t the standard limited-speed figures used in practice, which is why they aren’t the correct definition.

Passenger not exceeding 60 mph, freight 50 mph

Passenger not exceeding 30 mph, freight 20 mph

Passenger not exceeding 50 mph, freight 45 mph

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