Practice questions on June 10, 2017; replies will earn 0–6 points (no scoring for replies sent more than 1 day after posting). Thank you for your replies
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This post was last edited by percy on 2017-6-9 at 19:42. Multiple-choice question: (No points awarded for incorrect answers) When a liquid flows through a control valve, the flow velocity at the throttle opening increases sharply and the pressure drops. If the pressure falls below the saturated vapor pressure of the liquid at that temperature, vaporization occurs; gases are released, resulting in two-way flow of both liquid and gas. This phenomenon is called (A) A. Flashing B. Cavitation C. Erosion D. Corrosion. No points will be awarded for replies given within 1 day of posting. Thank you for your replies
A、Flash evaporation #Reply quickly here#