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What type of pump uses the inward stroke of a piston or diaphragm to draw (intake) liquid into a chamber and then uses an outward stroke to positively displace (discharge) the liquid?


A) Axial pump
B) Rotary pump
C) Centrifugal pump
D) Reciprocating pump

E) A) and C)
F) All of the above

Correct Answer

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What can pumps be driven by?


A) Air
B) Electric motors
C) Steam turbines
D) All of the above

E) B) and C)
F) A) and D)

Correct Answer

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Which of the following is a main component of a rotary pump?


A) Shaft
B) Packing/seal
C) Inlet check valve
D) Outlet check valve

E) A) and D)
F) A) and B)

Correct Answer

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What type of pump moves liquids by rotating a screw or a set of lobes, gears, or vanes that trap the liquid and physically push it through the pump?


A) Axial pump
B) Rotary pump
C) Centrifugal pump
D) Reciprocating pump

E) All of the above
F) A) and D)

Correct Answer

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Which of the following symbols represents a positive displacement pump?


A) Which of the following symbols represents a positive displacement pump? A) B) C) D)
B) Which of the following symbols represents a positive displacement pump? A) B) C) D)
C) Which of the following symbols represents a positive displacement pump? A) B) C) D)
D) Which of the following symbols represents a positive displacement pump? A) B) C) D)

E) A) and C)
F) A) and B)

Correct Answer

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What should be done to prevent a pump from cavitation?


A) Lubrication
B) Recycle loops
C) Priming
D) Maintenance

E) B) and C)
F) A) and B)

Correct Answer

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C

Which of the following is a key characteristic of cavitation?


A) Small pressure fluctuations
B) Consistent flow rate
C) Severe vibration
D) Leakage

E) A) and B)
F) A) and C)

Correct Answer

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Which of the following is a main component of a centrifugal pump?


A) Piston
B) Propeller
C) Lobes
D) Volute

E) B) and C)
F) None of the above

Correct Answer

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D

What type of pump uses impellers to generate outward force?


A) Dynamic
B) Plunger
C) Piston
D) Positive displacement

E) B) and D)
F) A) and C)

Correct Answer

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Which of the following symbols represents a centrifugal pump?


A) Which of the following symbols represents a centrifugal pump? A) B) C) D)
B) Which of the following symbols represents a centrifugal pump? A) B) C) D)
C) Which of the following symbols represents a centrifugal pump? A) B) C) D)
D) Which of the following symbols represents a centrifugal pump? A) B) C) D)

E) A) and B)
F) A) and C)

Correct Answer

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What can be used to allow fluid flow circulation if the discharge valves or other downstream valves are closed?


A) Cavitation
B) Recycle loops
C) Priming
D) Vibration

E) C) and D)
F) A) and D)

Correct Answer

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B

What type of pump uses a propeller or row of blades to propel liquids axially along the shaft?


A) Axial pump
B) Rotary pump
C) Centrifugal pump
D) Reciprocating pump

E) B) and C)
F) A) and B)

Correct Answer

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What type of pump uses an impeller on a rotating shaft to generate centrifugal force, which is converted to pressure in the volute to move liquids?


A) Axial pump
B) Rotary pump
C) Centrifugal pump
D) Reciprocating pump

E) B) and C)
F) A) and D)

Correct Answer

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What is the pressure called that is developed when the speed generated by the centrifugal force is slowed in the volute of the pump casing?


A) Liquid head
B) Deadhead pressure
C) Liquid pressure
D) Centrifugal force

E) A) and B)
F) All of the above

Correct Answer

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What should process technicians do when monitoring and maintaining pumps?


A) Check gas levels to make sure they are satisfactory
B) Check seals and flanges to make sure there are no leaks
C) Feel for leakages
D) Check to make sure water is being used as a lubricant

E) None of the above
F) A) and D)

Correct Answer

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Why are centrifugal pumps used more often than positive displacement pumps?


A) They are more effective
B) They are less expensive
C) They require more space
D) They are more complex to operate

E) A) and C)
F) B) and C)

Correct Answer

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Which of the following is an example of a positive displacement pump?


A) Axial
B) Rotary screw pump
C) Multi-stage centrifugal
D) Single-stage centrifugal

E) C) and D)
F) None of the above

Correct Answer

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