Question The speed limit at an uncontrolled railroad crossing is: Answers 25 mph. 15 mph. 20 mph. Explanation When you are within 100 feet of an uncontrolled railroad crossing where you cannot see the tracks for 400 feet in both directions, the speed limit is 15 mph. Pass your DMV Written Test with flying colors Take me to the cheat sheet California This questions appears in the following tests: California Practice Test 18 California Practice Test 16