Question 246Steam Plants - Assistant Engineer70% to pass
According to the data given in illustration, which of the following would be the physical state of the fluid at a gage vacuum of 28.09 inches Hg, and 117.99 degrees Fahrenheit? Illustration SG-0026
AI Explanation
The correct answer is C) Superheated vapor.
At a gage vacuum of 28.09 inches Hg and a temperature of 117.99 degrees Fahrenheit, the fluid would be in a superheated vapor state. This is because the given conditions place the fluid above the saturation line on a pressure-temperature diagram, indicating that the fluid is in a superheated state.
The other options are incorrect because a gage vacuum of 28.09 inches Hg corresponds to a low pressure, which would not support a sub-cooled liquid (A) or a saturated liquid (B) state. Additionally, a temperature of 117.99 degrees Fahrenheit is too high for a mixture of saturated liquid and vapor (D) to exist at the given pressure.
Related Questions
#244 The device shown in the illustration is a/an _______________. Illustration SG-0013#245 Desuperheated steam can be found at the _______________.#247 With reference to the chart, if a boiler generates saturated steam at 385.3 psig, how much heat per pound was required to change the water into steam if the feed water temperature was initially 104.5°C? Illustration SG-0004 #248 According to the data given in the illustration, which of the following would be the physical state of the fluid at a gage vacuum of 29.00 inches Hg, and 85.21 degrees Fahrenheit? Illustration SG-0026 #249 Assume that steam has formed in a boiler in which all of the steam stop valves are closed, and the water level is held constant. When there is an increase in the temperature of the steam and water in the boiler, which of the following effects will occur on the pressure and the specific volume of the steam?