Intersections · Open Intersections
An open intersection is one without traffic control signs or signals.

An open intersection is one without traffic control signs or signals. When you enter an open intersection, you must yield the right-of-way if:
a vehicle is already in the intersection;
you enter or cross a state highway from a secondary road;
you enter a paved road from an unpaved road; or
you plan to make a left turn and a vehicle is approaching from the opposite direction.
Learn it with your state's rules
DMV One Way teaches the whole handbook slide by slide and checks it with practice questions.