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The hydraulic pump converts hydraulic energy into mechanical energy.
False
The pump creates a partial vacuum at its outlet.
False
A centrifugal pump is an example of non-positive displacement pump.
False
Positive displacement pumps have high-pressure capability up to 12,000 psi.
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Positive displacement pumps have small changes in efficiency throughout the design pressure range.
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Pumps operate on the principle whereby a partial vacuum is created at the pump inlet due to the internal operation of the pump.
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Gear pumps can have fixed or variable displacement.
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The displacement volume of a pump is denoted by the symbol VD.
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Volumetric efficiency, ηυ, for positive displacement pumps is typically close to 100%.
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A small clearance must be maintained between the gear teeth tip and pump housing to avoid any leakage.
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Positive displacement pumps have high volumetric efficiency.
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Centrifugal pump is an example of a positive displacement pump.
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The hydraulic pump converts mechanical energy into hydraulic energy.
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Positive displacement pumps do not have small changes in efficiency throughout the design pressure range.
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The pump creates a partial vacuum at its inlet to permit atmospheric pressure to force the fluid into the pump.
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Gear pumps can have both fixed and variable displacement capabilities, as mentioned in the text?
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Positive displacement pumps typically have a volumetric efficiency close to 100%, as per the text?
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Piston pumps can have both fixed and variable displacement capabilities, according to the text?
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The theoretical flow rate of a gear pump is based on volumetric displacement and pump speed, as mentioned in the text?
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Vane pumps can be of both unbalanced and balanced types, as per the text?
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