Pumps/Pumping/Wells - Sample Questions
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![Page 1: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/1.jpg)
New England Water Works Association
1. Why is a well acidified?
—A. Take out soluble iron or manganese
—B. Increase the well’s productivity
—C. Remove objectionable gases
—D. Remove turbidity
![Page 2: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/2.jpg)
New England Water Works Association
1. Why is a well acidified?
— A. Take out soluble iron or manganese
— B. Increase the well’s productivity
— C. Remove objectionable gases
— D. Remove turbidity
![Page 3: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/3.jpg)
New England Water Works Association
2. Which of the following best defines static water level ?
— A. Water level in a well after a pump has operated for a period of time.
— B. Water level in a well when the well in not in operation.
— C. Water level in a well measured from the ground surface to the drawdown water level.
— D. Water level in a well measured from the natural water level to the drawdown water level.
![Page 4: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/4.jpg)
New England Water Works Association
2. Which of the following best defines static water level ?
— A. Water level in a well after a pump has operated for a period of time.
— B. Water level in a well when the well in not in operation.
— C. Water level in a well measured from the ground surface to the drawdown water level.
— D. Water level in a well measured from the natural water level to the drawdown water level.
![Page 5: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/5.jpg)
New England Water Works Association
3. Which of the following best describes the cone of depression?
— A. Change in water elevation from the normal level to the pumping level
— B. Depression around the well of the water surface caused by pumping water from the well
— C. Water level in a well after a pomp has operated over a period of time
— D. Measured distance from the ground to the pumping level
![Page 6: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/6.jpg)
New England Water Works Association
3. Which of the following best describes the cone of depression?
— A. Change in water elevation from the normal level to the pumping level
— B. Depression around the well of the water surface caused by pumping water from the well
— C. Water level in a well after a pomp has operated over a period of time
— D. Measured distance from the ground to the pumping level
![Page 7: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/7.jpg)
New England Water Works Association
4. The residual drawdown of a well is defined as
— A. water level in a well after a pump has operated over a period of time
— B. measured distance from the ground to the pumping level
— C. water level below the normal level that persists after a well pump has been off for a period of time
— D. measured distance between the water level and the top of the screen
![Page 8: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/8.jpg)
New England Water Works Association
4. The residual drawdown of a well is defined as
— A. water level in a well after a pump has operated over a period of time
— B. measured distance from the ground to the pumping level
— C. water level below the normal level that persists after a well pump has been off for a period of time
— D. measured distance between the water level and the top of the screen
![Page 9: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/9.jpg)
New England Water Works Association
Well Pumping
Cone of DepressionDrawdown
Pumping Water Level
Radius of influence
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New England Water Works Association
5. What is the maximum theoretical suction lift of a
centrifugal pump at sea level?
— A. 10 ft.
— B. 34 ft.
— C. 52 ft.
— D. 85 ft.
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New England Water Works Association
5. What is the maximum theoretical suction lift of a
centrifugal pump at sea level?
— A. 10 ft.
— B. 34 ft.
— C. 52 ft.
— D. 85 ft.
![Page 12: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/12.jpg)
New England Water Works Association
6. What type of motor in the simplest of all AC motors, with rotors consisting of a
series of bars placed in slots?
— A. Squirrel-cage
— B. Wound-rotor
— C. Capacitor-start
— D. Synchronous
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New England Water Works Association
6. What type of motor in the simplest of all AC motors, with rotors consisting of a
series of bars placed in slots?
— A. Squirrel-cage
— B. Wound-rotor
— C. Capacitor-start
— D. Synchronous
![Page 14: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/14.jpg)
New England Water Works Association
7. Which of the following type of valve is used in maintaining prime to a
pump?
— A. Foot
— B. Suction
— C. Vacuum header
— D. Butterfly
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New England Water Works Association
7. Which of the following type of valve is used in maintaining prime to a
pump?
— A. Foot
— B. Suction
— C. Vacuum header
— D. Butterfly
![Page 16: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/16.jpg)
New England Water Works Association
8. Which of the following characteristics of a pump is shown in
a pump curve?
— A. wire-to-water horsepower
— B. motor horsepower
— C. friction loss
— D. efficiency
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New England Water Works Association
8. Which of the following characteristics of a pump is
shown in a pump curve?— A. wire-to-water horsepower
— B. motor horsepower
— C. friction loss
— D. efficiency
![Page 18: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/18.jpg)
New England Water Works Association
9. Which type of level sensor requires an air supply?
— A. Bubbler tube
— B. Diaphragm element
— C. Float mechanism
— D. Direct electronic sensor
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New England Water Works Association
9. Which type of level sensor requires an air supply?
— A. Bubbler tube
— B. Diaphragm element
— C. Float mechanism
— D. Direct electronic sensor
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New England Water Works Association
10. A well produces 365 gpm with a drawdown of 22.5 ft. What is the specific
yield in gallons per minute for foot?
— A. 16.2
— B. 22.5
— C. 32.4
— D. 36.5
![Page 21: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/21.jpg)
New England Water Works Association
10. A well produces 365 gpm with a drawdown of 22.5 ft. What is the specific
yield in gallons per minute for foot?
— A. 16.2
— B. 22.5
— C. 32.4
— D. 36.5
Sp. Yield = gpm/ft
Sp. Yield = 365/22.5
Sp. Yield = 16.222 gpm/ft
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New England Water Works Association
11. What type of motor is used when infrequent starting is required and load needs to be brought up to speed very
quickly?
— A. repulsion-induction
— B. capacitor-start
— C. wound-rotor
— D. synchronous
![Page 23: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/23.jpg)
New England Water Works Association
11. What type of motor is used when infrequent starting is required and load needs to be brought up to speed very
quickly?
— A. repulsion-induction
— B. capacitor-start
— C. wound-rotor
— D. synchronous
![Page 24: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/24.jpg)
New England Water Works Association
12. What type of level sensor has air connected to a pressure transducer via
a tube?
— A. bubbler tube
— B. direct electronic sensor
— C. float mechanism
— D. diaphragm element
![Page 25: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/25.jpg)
New England Water Works Association
12. What type of level sensor has air connected to a pressure transducer via
a tube?
— A. bubbler tube
— B. direct electronic sensor
— C. float mechanism
— D. diaphragm element
![Page 26: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/26.jpg)
New England Water Works Association
13. Which of the following pumps should be used to increase pressure at large
distribution systems?
— A. positive displacement
— B. progressive cavity
— C. vertical turbine
— D. airlift
![Page 27: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/27.jpg)
New England Water Works Association
13. Which of the following pumps should be used to increase pressure at large
distribution systems?
— A. positive displacement
— B. progressive cavity
— C. vertical turbine
— D. airlift
![Page 28: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/28.jpg)
New England Water Works Association
14. What is the term for the height of a column of water will rise in a well?
— A. potentiometric
— B. groundwater level
— C. piezometric surface
— D. Residual drawdown
![Page 29: Pumps/Pumping/Wells - Sample Questions](https://reader033.fdocuments.us/reader033/viewer/2022052411/557a8a31d8b42ac8638b4c7c/html5/thumbnails/29.jpg)
New England Water Works Association
14. What is the term for the height of a column of water will rise in a well?
— A. potentiometric
— B. groundwater level
— C. piezometric surface
— D. Residual drawdown