Question 347Motor Plants - Assistant Engineer

The correct answer is D) non-condensable gases and brine. The items labeled "21" and "22" in the illustration MO-0111 are used to remove non-condensable gases and brine from the distiller or evaporator system. Non-condensable gases, such as air and carbon dioxide, can accumulate in the system and reduce the efficiency of the distillation process. The brine, which is the concentrated saltwater left behind after the freshwater has been evaporated, also needs to be removed from the system. The other options are incorrect because they do not accurately describe the function of the items labeled "21" and "22". Option A is incorrect as it refers to the removal of distillate, which is the freshwater produced by the distillation process, rather than the non-condensable gases and brine. Options B and C are also incorrect as they do not fully capture the purpose of these items, which is to remove both non-condensable gases and brine from the system.