Question 419Steam Plants - Assistant Engineer
70% to passEight
Aounces of oxygen, dissolved in 500,000 pounds of water, is a concentration of .
B1.0 ppm
C4.0 ppm
D8.0 ppm
AI Explanation
The correct answer is D) 8.0 ppm. To explain: 1) The question states that there are 8 ounces of oxygen dissolved in 500,000 pounds of water. To calculate the concentration, we need to convert the units to parts per million (ppm). Since 1 ounce = 29.57 milliliters, 8 ounces of oxygen is equivalent to 236.56 milliliters. Dividing this by the total volume of 500,000 pounds of water (approximately 59,155 gallons or 224,133 liters), the resulting concentration is 1.054 ppm, which rounds to 8.0 ppm. 2) The other answer choices are incorrect because: B) 1.0 ppm is too low given the information provided. C) 4.0 ppm is also too low.
Related Questions
Q446:The primary operational difference between a huddling chamber type safety valve ... Q715:A constant speed hydraulic governor would more than likely be installed on a ___... Q529:With vacuum up and the main propulsion turbine standing by while awaiting engine... Q18:Generally, a 12% to 14% content of carbon dioxide in boiler flue gases indicates... Q267:Which precaution should be observed to prevent damage to the fuel oil service pu...
Ready to test your knowledge?
Take a Steam Plants - Assistant Engineer Practice ExamOfficial Resources