Question 6024 of 223 · California Water Treatment Operator Exam
A filter has an area of 300 sq ft and operates at 4 gpm/sq ft for 24 hours. How many gallons are produced?
Exactly one answer is correct.
You got of questions right. Here on the question pages nobody remembers which ones you got wrong. The trainer saves your progress and asks the mistakes again until they stick.
Or free: the 10 questions most people get wrong
Show solution
Correct answer to question 6024
- A: 1,728,000 gallons
Explanation
Flow = 300 x 4 = 1,200 gpm. In 24 hours: 1,200 x 1,440 = 1,728,000 gal. 1,200 is only the flow in gpm.
More questions: Treatment Exam Math
- 6025A filter with an area of 250 sq ft is backwashed at 20 gpm/sq ft for 8 minutes. What volume of backwash water is used?
- 6026A backwash rate of 15 gpm/sq ft is equal to a rate of rise of approximately
- 6027A sedimentation basin with a surface area of 2,500 sq ft receives 1.0 MGD. What is the surface loading rate?
- 6028A basin has a total weir length of 150 ft and a flow of 1.2 MGD. What is the weir overflow rate?
- 6029A required CT is 36 mg/L-min and the chlorine residual at the end of the clearwell is 1.5 mg/L. What minimum contact time is needed?
- 6030A pump moves 1,000 gpm against a total head of 99 ft. What is the water horsepower?