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444 NOTES ON HYDRAULICS.
TABLE No. 80. -Head, Pressure, and Velocity of Efflux
of Water.
Head in
Feet.
Pressure in Velocity in .
Pressure in Velocity in
Pounds per Feet per
xiG3,Q in
Feet.
Pounds per Feet per
Square Inch. Second. Square Inch. Second.
h P V h P V
0.1 0.0434 2.54 19 8.246 35
0.2 0.0868 3.59 20 8.68 35.9
0.25 0. 1085 4.01 25 10.85 40.1
0.3 0.1302 4.39 30 13.02 43
0.4 0.1736 5.07 35 15.19 47.4
0.5 0.217 5.67 40 17.36 50.7
0.6 0.2604 6.22 45 19.53 53.8
0.7 0.3038 6.71 50 21.7 56.7
0.75 0.3255 6.95 55 23.87 59.5
0.8 0.3472 7.18 60 26.04 62.1
0.9 0.3906 7.61 65 28.21 64.7
1 0.434 8.02 70 30.38 67.1
1.25 0.5425 8.95 75 32.55 69.5
1.5 0.651 9.83 80 34.72 71.8
1.75 0.7595 10.6 85 36.89 73.9
2 0.868 11.4 90 39.06 76.1
2.25 0.9735 12 95 41.23 78.2
2.5 1.082 12.6 100 43.4 80.2
2.75 1.1905 13.3 110 47.74 84.2
3 1.302 13.9 120 52.08 87.7
3.25 1.4102 14.4 130 56.42 91.5
3.5 1.519 15 140 60.76 94.7
3.75 1.6375 15.5 150 65.1 98.3
4 1.736 16 160 69.44 101.2
4.25 1.8445 16.5 170 73.78 104.5
4.5 1.953 17 180 78.12 107.2
4.75 2.0615 17.5 190 82.46 110.4
5 2.17 17.9 200 86.8 113.5
6 2.604 19.6 225 97.65 120
7 3.038 21.2 250 108.5 126
8 3.472 22.8 275 119.35 133
9 3.906 24.1 300 130.2 139
10 4.34 25.4 325 141.05 144
11 4.774 26.6 350 151.9 150
12 5.208 27.8 375 162. 75 155
13 5.642 *28.9 400 173.6 160
14 6.076 30 425 184.45 165
15 6.51 31.1 450 195.3 170
16 6.944 32.1 475 206.15 174
17 7.378 33.1 500 217 179
18 7.812 34 550 238.7 188
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