Question 144Steam Plants - 1st Asst/Chief70% to pass
A dissolved oxygen concentration of 8.0 ppm represents _______________.
AI Explanation
A) 8 ounces of oxygen dissolved in 1,000,000 ounces of water is the correct answer.
Dissolved oxygen (DO) concentration is typically measured in parts per million (ppm), which is equivalent to milligrams per liter (mg/L). A DO concentration of 8.0 ppm means that there are 8 milligrams of oxygen dissolved in 1 liter of water.
The other options are incorrect because they do not accurately represent the relationship between the amount of dissolved oxygen and the volume of water. Option B incorrectly states the ratio of oxygen to water, while options C and D use incorrect units (pounds and tons) for the amount of oxygen and water.
Related Questions
#142 When you are installing a new furnace floor in an oil fired boiler, the clearance between the firebricks should be large enough to _______________.#143 According to Coast Guard Regulations #145 Phenolphthalein is used as an indicator to test boiler water for _______________.#146 A sample of boiler water can be chemically tested for alkalinity by initially adding a few drops of phenolphthalein and then slowly titrating the water sample until the _______________.#147 Testing boiler water for chloride content will indicate the amount of _______________.