When loading compressed gas, the liquid discharge valves should be: Question When loading compressed gas, the liquid discharge valves should be: Answers Removed. Closed Opened. Explanation Keep liquid discharge valves on a compressed gas tank closed except when loading and unloading. This questions appears in the following tests: Arizona HazMat Kentucky HazMat New Hampshire HazMat South Carolina HazMat South Carolina HazMat Virginia HazMat
