water Distribution math questions and answers newest solution
2026/2027 and answers newest solution 2026/2027
1. What is the surface area in square feet of the top of a cylindrical tank that
has a diameter of 75ft.? CORRECT ANSWER 4,415sq.ft.
2. Find the surface area of the opening of an 8 inch pipe in square feet. CORRECT ANSWER
34sq.ft.
3. Find the volume of a pipe in cubic feet that is 18"inches in diameter and
225'ft. long. CORRECT ANSWER 397 cu.ft.
4. You have to paint a cylindrical water storage tank that is 150ft. in diameter
and 20ft. tall. You must put two coats of paint and include the top of the tank.
If each gallon of paint will cover 250sq.ft., how many gallons will you need to
paint the tank? CORRECT ANSWER 217gallons
5. How many cubic feet of material were removed from a trench that was 3'ft.
wide, 54"inch deep and 750ft. long? CORRECT ANSWER 10,125cu.ft.
6. How many cubic yards of backfill material are needed to backfill a trench
36 inches wide, 6 feet deep, and 300 feet long after a 14-inch main is lald in
place? CORRECT ANSWER 188
7. What is the capacity of a tank in cubic feet and gallons, if the diameter is
150'ft. and the height is 32'ft.? CORRECT ANSWER 565,200cu.ft. / 4,227,696 gallons
8. How many gallons are in a basin that is 20ft. tall, 45ft. wide and 150ft.
long? CORRECT ANSWER 1,009,800 gallons
9. How many Acre Feet are in 3,450,700 gallons? CORRECT ANSWER 10.59 AF
10. How many Acre Feet are in 552,900 cubic feet of water? CORRECT ANSWER 12.7 AF
11. How long would it take in hours to fill a sedimentation basin measuring 50ft
wide 250ft in length and 15ft deep with a pump that produces 2500 gallons
, per minute? CORRECT ANSWER 9 hrs, 21 mins.
12. If a fire hydrant has a nozzle pressure of 100psi, the head of water used to
supply this is CORRECT ANSWER 231 ft.
13. How many days will five 150 pound chlorine cylinders last if 5 milligrams
per liter of chlorine are applied to 2,000,000 gallons per day? CORRECT ANSWER 9 days
14. Find the water level in a 100 foot diameter tank 130 feet high if a pressure
gauge indicates 40 psig at the tank base? CORRECT ANSWER 92 feet
15. How many feet of head are needed to supply 60psi? CORRECT ANSWER 138.6 feet
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water Distribution math questions and answers newest solution 2026/2027
16. If a tank has 20 feet of water in it and sits on top of a hill that is 135 feet
above the nearest customer, what would be the pressure at that customer's
residents? CORRECT ANSWER 67 psi
17. The discharge pressure out of a pump 92 psi, what is the head pressure in
feet? CORRECT ANSWER 212.5 feet
18. Calculate the flow in cubic feet per second of a pipe that is 16" in diameter
and flowing at a rate of 2,450gpm. CORRECT ANSWER 5.45 cfs
19. If a 12" diameter pipe is flowing at 2.7 feet per second, what is the flow in
gallons per minute? CORRECT ANSWER 951 gpm
20. Calculate the flow-rate in cubic feet per second (CFS) of a square channel
that is 6ft wide 4ft deep and flowing at a velocity of 3.5 feet per second CORRECT ANSWER 84
21. If a channel is flowing water at Scfs, what is the flow in gallons per minute?
CORRECT ANSWER 2.244 gpm
22. A pump discharge pressure indicates 60 psig find the discharge head in
feet? CORRECT ANSWER 138.6 ft.
2026/2027 and answers newest solution 2026/2027
1. What is the surface area in square feet of the top of a cylindrical tank that
has a diameter of 75ft.? CORRECT ANSWER 4,415sq.ft.
2. Find the surface area of the opening of an 8 inch pipe in square feet. CORRECT ANSWER
34sq.ft.
3. Find the volume of a pipe in cubic feet that is 18"inches in diameter and
225'ft. long. CORRECT ANSWER 397 cu.ft.
4. You have to paint a cylindrical water storage tank that is 150ft. in diameter
and 20ft. tall. You must put two coats of paint and include the top of the tank.
If each gallon of paint will cover 250sq.ft., how many gallons will you need to
paint the tank? CORRECT ANSWER 217gallons
5. How many cubic feet of material were removed from a trench that was 3'ft.
wide, 54"inch deep and 750ft. long? CORRECT ANSWER 10,125cu.ft.
6. How many cubic yards of backfill material are needed to backfill a trench
36 inches wide, 6 feet deep, and 300 feet long after a 14-inch main is lald in
place? CORRECT ANSWER 188
7. What is the capacity of a tank in cubic feet and gallons, if the diameter is
150'ft. and the height is 32'ft.? CORRECT ANSWER 565,200cu.ft. / 4,227,696 gallons
8. How many gallons are in a basin that is 20ft. tall, 45ft. wide and 150ft.
long? CORRECT ANSWER 1,009,800 gallons
9. How many Acre Feet are in 3,450,700 gallons? CORRECT ANSWER 10.59 AF
10. How many Acre Feet are in 552,900 cubic feet of water? CORRECT ANSWER 12.7 AF
11. How long would it take in hours to fill a sedimentation basin measuring 50ft
wide 250ft in length and 15ft deep with a pump that produces 2500 gallons
, per minute? CORRECT ANSWER 9 hrs, 21 mins.
12. If a fire hydrant has a nozzle pressure of 100psi, the head of water used to
supply this is CORRECT ANSWER 231 ft.
13. How many days will five 150 pound chlorine cylinders last if 5 milligrams
per liter of chlorine are applied to 2,000,000 gallons per day? CORRECT ANSWER 9 days
14. Find the water level in a 100 foot diameter tank 130 feet high if a pressure
gauge indicates 40 psig at the tank base? CORRECT ANSWER 92 feet
15. How many feet of head are needed to supply 60psi? CORRECT ANSWER 138.6 feet
1/4
water Distribution math questions and answers newest solution 2026/2027
16. If a tank has 20 feet of water in it and sits on top of a hill that is 135 feet
above the nearest customer, what would be the pressure at that customer's
residents? CORRECT ANSWER 67 psi
17. The discharge pressure out of a pump 92 psi, what is the head pressure in
feet? CORRECT ANSWER 212.5 feet
18. Calculate the flow in cubic feet per second of a pipe that is 16" in diameter
and flowing at a rate of 2,450gpm. CORRECT ANSWER 5.45 cfs
19. If a 12" diameter pipe is flowing at 2.7 feet per second, what is the flow in
gallons per minute? CORRECT ANSWER 951 gpm
20. Calculate the flow-rate in cubic feet per second (CFS) of a square channel
that is 6ft wide 4ft deep and flowing at a velocity of 3.5 feet per second CORRECT ANSWER 84
21. If a channel is flowing water at Scfs, what is the flow in gallons per minute?
CORRECT ANSWER 2.244 gpm
22. A pump discharge pressure indicates 60 psig find the discharge head in
feet? CORRECT ANSWER 138.6 ft.
