2024 CO CDL Practice Test: Class B - Test 5 Based on 2024 CO CDL Handbook 19. Which of the following determines your Blood Alcohol Concentration? A How much you drink B The temperature of the drink C How frequently you drink Next More 19/29 Progress 0 Errors Restart Next Next Class B - Test 5 Back to Test List Class B - Test 4 Class B - Test 6 Challenge Library 12 More CO CDL Practice Tests 14 Class B - Test 6 15 Class B - Test 7 16 HazMat - Test 17 HazMat - Test 2 18 HazMat - Test 3 19 HazMat - Test 4 20 HazMat - Test 5 21 HazMat - Test 6 22 Passenger - Test 23 Passenger - Test 2