2024 CO DMV Practice Test 18 Based on 2024 CO Driver's Handbook 18. When a truck driver behind you wants to pass your vehicle, your speed should: A Change B Change lanes C Remain steady or decrease D Increase Next More 18/30 Progress 0 Errors Restart Next Next CO Permit Practice Test 18 Back to Test List CO Permit Practice Test 17 CO Permit Practice Test 19 Challenge Library 12 More CO DMV Practice Tests 1 CO Permit Practice Test 1 2 CO Permit Practice Test 2 3 CO Permit Practice Test 3 4 CO Permit Practice Test 4 5 CO Permit Practice Test 5 6 CO Permit Practice Test 6 7 CO Permit Practice Test 7 8 CO Permit Practice Test 8 9 CO Permit Practice Test 9 19 CO Permit Practice Test 19