Which outcome results when a progressive cavity pump designed for viscous fluids is used to pump water?

💡 Explanation

When a progressive cavity pump is used with water, rotor-stator contact increases because the water lacks the viscosity to maintain a lubricating film, thus generating friction and binding. Therefore, rotor-stator seizing results, rather than reduced efficiency, wear from cavitation, or motor overload; these require differing fluid or loading conditions.

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