Texas Commission on Environmental Quality (TCEQ). Class C Water License Exam

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Prepare for the Texas Commission on Environmental Quality (TCEQ) Class C Water License Exam. Utilize flashcards, multiple choice questions, and in-depth explanations. Equip yourself with the skills to succeed!

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What is the maximum safe withdrawal rate of chlorine for a 150-pound cylinder?

20 lbs in 24 hours
30 lbs in 24 hours
40 lbs in 24 hours
50 lbs in 24 hours

The correct answer is: 40 lbs in 24 hours

The maximum safe withdrawal rate of chlorine from a 150-pound cylinder is 40 pounds in a 24-hour period. This rate is established based on guidelines that ensure the safe and effective use of chlorine, taking into account factors such as pressure, temperature, and the design of the cylinder. Withdrawing at this specified rate allows for proper pressure management within the cylinder, preventing the risk of rapid depletion of chlorine gas which could lead to operational hazards. It also ensures that the chlorine is used efficiently for water treatment processes, such as disinfection, without compromising safety. Selecting a higher withdrawal rate could risk exceeding the safe limits for handling chlorine gas, potentially resulting in pressure drops that might lead to undue stress on the cylinder or insufficient chlorine delivery to treatment systems. Therefore, maintaining this maximum rate is crucial for both operational efficacy and safety in handling chlorine.