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1. |
Which of the following is true for turbulent flow? |
A. | G <sub>r </sub>P <sub>r</sub> > 10<sup>8</sup> |
B. | G <sub>r </sub>P <sub>r</sub> > 10<sup>9</sup> |
C. | G <sub>r </sub>P <sub>r</sub> > 10<sup>3</sup> |
D. | G <sub>r </sub>P <sub>r</sub> > 10<sup>15</sup> |
Answer» C. G <sub>r </sub>P <sub>r</sub> > 10<sup>3</sup> | |