2024 MD MVA Practice Test 20 Based on 2024 MD Driver's Handbook 2. Streets and highways are most slippery: A Just after it starts to rain. B When they are clean and dry. C When it has been raining hard for several hours. Next More 2/30 Progress 0 Errors Restart Next Next MD Permit Practice Test 20 Back to Test List MD Permit Practice Test 19 MD Permit Practice Test 1 Challenge Library 12 More MD MVA Practice Tests 1 MD Permit Practice Test 1 2 MD Permit Practice Test 2 3 MD Permit Practice Test 3 4 MD Permit Practice Test 4 5 MD Permit Practice Test 5 6 MD Permit Practice Test 6 7 MD Permit Practice Test 7 8 MD Permit Practice Test 8 9 MD Permit Practice Test 9 10 MD Permit Practice Test 10