Which effect arises when a positive displacement pump transfers cryogenic liquid through a partially blocked pipe?

💡 Explanation

When a cryogenic liquid is pumped through a partially blocked pipe, localized narrowing causes increased velocity, dropping the local pressure towards the liquid's vapor pressure, inducing cavitation. Therefore cavitation results, rather than vapor lock, polymerization, or reduced general efficiency, which necessitate thermal/chemical changes and friction loads, respectively.

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