(Solved): iefore a rotameter can be used to measure an unknown flow rate, a calibration curve of flow rate ...

iefore a rotameter can be used to measure an unknown flow rate, a calibration curve of flow rate versus rotameter reading must be prepared. A calibration technique for liquid is illustrated below. A flow ate is set by adjusting the pump speed; the rotameter reading is recorded, and the effluent from the rotameter is collected in a graduated cylinder for a timed interval. The procedure is carried out twice or each of several pump settings. Note that the collection times are nat the same for every trial. mass flow rate of a water stream for which the rotameter reading is \( 3.17 . \) \( \dot{m}= \) \( \mathrm{g} / \mathrm{min} \)