The packing of a pump keeps water in the volute and keeps ___ out.

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Multiple Choice

The packing of a pump keeps water in the volute and keeps ___ out.

Explanation:
The packing around a pump shaft acts as a seal to keep the pumped water inside the volute and to block air from entering the pump. If air gets in, it breaks the continuous water column, causing loss of prime and reduced suction, which hurts pump performance. The primary purpose of the packing is to exclude air; solids like dust or sludge aren’t the seal’s main job, and oil isn’t relevant in a typical water-pumping scenario.

The packing around a pump shaft acts as a seal to keep the pumped water inside the volute and to block air from entering the pump. If air gets in, it breaks the continuous water column, causing loss of prime and reduced suction, which hurts pump performance. The primary purpose of the packing is to exclude air; solids like dust or sludge aren’t the seal’s main job, and oil isn’t relevant in a typical water-pumping scenario.

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