What type of pump uses a propeller or row of blades to propel liquids in a horizontal direction, parallel to the pump’s shaft?
A. Axial pump
B. Rotary pump
C. Centrifugal pump
D. Reciprocating pump
A. Correct. Axial pumps are dynamic pumps that use a propeller or row of blades to propel liquids in a horizontal direction, parallel to the pump’s shaft.
B. Incorrect. Rotary pumps are positive displacement pumps that move liquids by rotating a screw or a set of gears, lobes, or vanes.
C. Incorrect. Centrifugal pumps use an impeller on a rotating shaft to generate pressure and move liquids to the outer casing within the pump and then out through the discharge shaft.
D. Incorrect. Reciprocating pumps are positive displacement pumps that use first an inward stroke of a piston or diaphragm to draw liquid into a chamber, and then a subsequent outward stroke to positively displace that liquid.
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