2024 CA CDL Practice Test: Double and Triples - Test 4 Based on 2024 CA CDL Handbook 24. On a wet road, how much should you reduce your speed? A By about one-third B By about one-half C By about one-quarter Next More 24/28 Progress 0 Errors Restart Next Next Double and Triples - Test 4 Back to Test List Double and Triples - Test 3 Double and Triples - Test 5 Challenge Library 12 More CA CDL Practice Tests 28 Double and Triples - Test 5 29 Tank - Test 30 Tank - Test 2 31 Tank - Test 3 32 Tank - Test 4 33 Tank - Test 5 34 Air Brakes - Test 35 All - Test 36 All - Test 2 37 All - Test 3