2024 OK DPS Practice Test 21 Based on 2024 OK Driver's Handbook 21. This sign means? A No right turn. B No left turn. C No turn on red. D No u-turn. Next More 21/30 Progress 0 Errors Restart Next Next OK Permit Practice Test 21 Back to Test List OK Permit Practice Test 20 OK Permit Practice Test 22 Challenge Library 12 More OK DPS Practice Tests 1 OK Permit Practice Test 1 2 OK Permit Practice Test 2 3 OK Permit Practice Test 3 4 OK Permit Practice Test 4 5 OK Permit Practice Test 5 6 OK Permit Practice Test 6 7 OK Permit Practice Test 7 8 OK Permit Practice Test 8 9 OK Permit Practice Test 9 22 OK Permit Practice Test 22