Question 23General Subjects - Assistant Engineer

The correct answer is A) at or below the dew point. The air charge leaving an intercooler or after-cooler of an air compressor can be expected to be at or below the dew point. This is because the purpose of an intercooler or after-cooler is to remove heat from the compressed air, reducing its temperature and increasing its density. As the air cools, its ability to hold moisture decreases, and the water vapor in the air can condense, bringing the air charge to the dew point or below. The other options are incorrect because: B) superheated air would go against the purpose of the intercooler/after-cooler, C) super-cooled air is not the expected outcome, and D) the air is not expected to be all of the above (at or below dew point, superheated, and super-cooled) simultaneously.