Quiz
Distribution Math Practice 3
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Questions in this quiz (15)
1How long will it take to fill an empty 16-inch diameter pipe that is 1.8 miles long, if it is filled at a rate of 700 gpm?
- A1.2 hours
- B2.4 hours
- C4.1 hours
- D4.9 hours
2A 150-foot long air line is placed in a well. If air is pumped into the air line, and the pressure stabilizes at 45 psi. what is the static water level in the well?
- A30.4 feet below ground surface
- B109.5 feet below ground surface
- C46.1 feet below ground surface
- D170 feet below ground surface
3If there are 180,000 gallons of water in a rectangular reservoir that is 60 feet long, 40 feet wide, and 25 feet deep, what is the water level in the reservoir?
- A20 feet
- B16 feet
- C4 feet
- D10 feet
4How many pounds of chlorine gas is needed in 24 hours if the chlorine dose is 2.5 mg/L and the flow rate of water is 550 gpm?
- A16.5 lbs.
- B4.4 lbs.
- C7.3 lbs.
- D27.4 lbs.
5How long will it take to drain the entire volume of an 8-inch diameter pipeline that is 3000 feet long, if the water velocity is 2.5 ft/s
- A10 minutes
- B20 minutes
- C30 minutes
- D40 minutes
6What is the flow rate through a 16-inch diameter pipeline if the water's velocity is 2.5 ft/s?
- A900 gpm
- B1002 gpm
- C1566 gpm
- D1940 gpm
7How many gallons of 12.5% sodium hypochlorite solution is required to disinfect 30,000 cubic feet of water with a chlorine dose of 2 mg/L? The specific weight of 12.5% sodium hypochlorite solution is 10 lbs/gallon.
- A10 gallons
- B7 gallons
- C8 gallons
- D3 gallons
8How many pounds of 65% HTH is required to disinfect a 25-foot diameter tank that is 15 feet high, with a chlorine dose of 3 mg/L? Assume the tank is completely filled with water.
- A14.1 lbs.
- B2.1 lbs.
- C9.7 lbs.
- D8.4 lbs.
9How many pounds of 65% calcium hypochlorite is required to chlorinate a new 8 inch diameter water main that is 3000 feet long? THe chlorine dose is 25 mg/L.
- A2.5 lbs.
- B7.1 lbs.
- C8.9 lbs.
- D9.4 lbs.
10What is the well yield if it takes 55 minutes to fill a 4044 cubic foot tank from a well?
- A210 gpm
- B125 gpm
- C550 gpm
- D1045 gpm
11What is the required storage volume for a reservoir if a well pumps 600 gpm of water into the reservoir for 24 hours?
- A29,080 cubic feet
- B320,440 cubic feet
- C45,220 cubic feet
- D115,508 cubic feet
12What is the average daily water usage if the water meter reads 2,788 CCF today and exactly one week later, it reads 2,792 CCF?
- A102.4 gallons/day
- B427.4 gallons/day
- C982.1 gallons/day
- D72.7 gallons/day
13What is the water level in a 30 foot diameter tank that is 20 feet high, if the water pressure is 3.8 psi at the bottom of the tank?
- A2.1 feet
- B3.2 feet
- C8.8 feet
- D19.2 feet
14What is the water level in a tank that is located 150 feet above a pump station, if the water pressure on the discharge side of the pump is 74 psi?
- A20.9 feet
- B9.1 feet
- C8.4 feet
- D4.7 feet
15How many days will it take to use 68,288 gallons of water from a tank, if the service area it serves has 388 people, and each person uses 88 gallons/day?
- A7 days
- B5 days
- C4 days
- D2 days
Information
- Description
- Distribution practice for water math
- Author
- Joe Jorgensen
- Language
- English
- Views
- 175
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