Question 248Steam Plants - Assistant Engineer

The correct answer is C) Superheated vapor. At a gage vacuum of 29.00 inches Hg and a temperature of 85.21 degrees Fahrenheit, the fluid would be in a superheated vapor state. This is because the temperature and pressure conditions are above the saturation point of the fluid, meaning the fluid is in a superheated state and not a saturated liquid or a mixture of liquid and vapor. The other options are incorrect because a gage vacuum of 29.00 inches Hg would not result in a subcooled liquid (A) or a saturated liquid (B), and the temperature and pressure conditions are not within the two-phase region, ruling out a mixture of saturated liquid and vapor (D).