What is the primary mechanism by which a hydraulic pump moves fluid?
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A.
By generating an electric charge to attract the fluid
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B.
By using thermal expansion of the fluid
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C.
By creating a vacuum to draw fluid in and then pressurising it
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D.
By using gravity to push the fluid through the system
Correct Answer:
C. By creating a vacuum to draw fluid in and then pressurising it
Explanation:
The correct answer is by creating a vacuum to draw fluid in and then pressurising it.
Hydraulic pumps function by generating a vacuum at the pump inlet, which allows atmospheric pressure to force liquid from the reservoir into the pump's inlet line. Once inside, the mechanical action of the pump traps the fluid and delivers it to the outlet, forcing it into the hydraulic system under pressure. This process converts mechanical energy from a motor or engine into hydraulic energy, enabling the movement and control of fluid within the system.
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