Which outcome occurs when a diaphragm pump used with a highly viscous fluid deadheads against a closed valve?

💡 Explanation

When a diaphragm pump deadheads, pressure increases continuously because the fluid volume has nowhere to go, eventually exceeding diaphragm strength and causing a rupture due to over-pressurization. Therefore rupture results, rather than stalling, thinning or backflow, which would involve alternate system mechanics under other fault conditions.

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