Question This sign means: Answers Minimum speed limit is 40 mph. No turn on red. Fines double in work zone. Added lane. Explanation Regulation signs regulate traffic speed and movement, displaying rules which drivers must obey. This sign indicates a minimum legal driving speed and drivers should not drive below the speed posted. Pass your DMV Written Test with flying colors Take me to the cheat sheet Indiana This questions appears in the following tests: Indiana Practice Test 17 Alaska Practice Test 177 Colorado Practice Test 100 Florida Practice Test 20 Hawaii Practice Test 124 Idaho Practice Test 91 Indiana Practice Test 133 Louisiana Practice Test 111 Massachusetts Practice Test 79 Michigan Practice Test 73 Minnesota Practice Test 150 Missouri Practice Test 145 Montana Practice Test 180 Nevada Practice Test 147 New Hampshire Practice Test 153 New Jersey Practice Test 24 North Carolina Practice Test 41 North Dakota Practice Test 13 Ohio Practice Test 90 Oregon Practice Test 101 Pennsylvania Practice Test 91 Texas Practice Test 65 Utah Practice Test 159 Vermont Practice Test 110 Virginia Practice Test 81 Washington Practice Test 68 West Virginia Practice Test 1 Indiana Practice Test 38