<prompt> True about anaesthesia machine a Cylinder is a part of high pressure systemb O2 flush delivers 35 litc O2 flush delivers 35 litd Pipeline is a part of low pressure systemabcadac  <response>: There are two sources of gases O2, N2O air for anaesthetic machine :-Cylinder High pressure systemPipeline source Intermediate pressure systemOxygen flush delivers 35-75 liters of oxygen per minute. 