2024 AK CDL Practice Test: All - Test Based on 2024 AK CDL Handbook 12. Typically, at what psi does the air compressor governor stop the compressor from pumping air? A 50 psi. B 100 psi. C 10 psi. D 125 psi. Next More 12/30 Progress 0 Errors Restart Next Next All - Test Back to Test List Air Brakes - Test All - Test 2 Challenge Library 12 More AK CDL Practice Tests 36 All - Test 2 37 All - Test 3 38 Tank and Hazmat - Test 39 Tank and Hazmat - Test 2 40 Class C - Test 41 Class C - Test 2 42 Class C - Test 3 43 Class C - Test 4 44 Class C - Test 5 45 Bus - Test