2024 OK DPS Practice Test 19 Based on 2024 OK Driver's Handbook 6. This sign means: A Truck parking area ahead. B Warning, hill. Steep downgrade ahead. C Watch for trucks. D Do not pass trucks. Next More 6/30 Progress 0 Errors Restart Next Next OK Permit Practice Test 19 Back to Test List OK Permit Practice Test 18 OK Permit Practice Test 20 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 20 OK Permit Practice Test 20 21 OK Permit Practice Test 21 22 OK Permit Practice Test 22