2024 SC DMV Practice Test 20 Based on 2024 SC Driver's Handbook 20. If you drive after drinking, be aware that alcohol affects: A Your judgment. B Your vision. C All of these. D Your coordination. Next More 20/30 Progress 0 Errors Restart Next Next SC Permit Practice Test 20 Back to Test List SC Permit Practice Test 19 SC Permit Practice Test 21 Challenge Library 12 More SC DMV Practice Tests 1 SC Permit Practice Test 1 2 SC Permit Practice Test 2 3 SC Permit Practice Test 3 4 SC Permit Practice Test 4 5 SC Permit Practice Test 5 6 SC Permit Practice Test 6 7 SC Permit Practice Test 7 21 SC Permit Practice Test 21 22 SC Permit Practice Test 22 23 SC Permit Practice Test 23