2024 RI CDL Practice Test: HazMat - Test 2 Based on 2024 RI CDL Handbook 5. What color are the ABS malfunction lamps on school buses? A Green. B Blue. C Red. D Yellow. Next More 5/29 Progress 0 Errors Restart Next Next HazMat - Test 2 Back to Test List HazMat - Test HazMat - Test 3 Challenge Library 12 More RI CDL Practice Tests 18 HazMat - Test 3 19 HazMat - Test 4 20 HazMat - Test 5 21 HazMat - Test 6 22 Passenger - Test 23 Passenger - Test 2 24 Double and Triples - Test 25 Double and Triples - Test 2 26 Double and Triples - Test 3 27 Double and Triples - Test 4