Final answer:
The speed limit on state routes within municipal corporations outside urban districts, unless a lower speed is established visibly on a sign, is generally determined by state traffic laws.
Step-by-step explanation:
The speed limit on state routes within municipal corporations outside urban districts, unless a lower speed is established visibly on a sign, is generally determined by state traffic laws. The specific speed limits may vary from state to state, but as an example, let's consider the general speed limit on state routes in Ohio. In Ohio, the speed limit on state routes within municipal corporations outside urban districts is 35 mph, unless otherwise posted.