Hydraulic and Gas Engineering
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HYDRAULIC MEMORANDA |
1 ft.=12 inches=305 metres, 1 metre=3.28 ft.=39.87 ins. |
1 cubic foot=6.25 gallons=28.2 litres=.0283 cubic metres |
1 cubic metre=1000 litres=220 gallons=35.32 cubic feet |
1 gallons=277.27 cu.ins.=16 cu. ft.=4.543 litres=.004543 cu.in |
1 litre-.001 cubic metres*.035 cubic feet=.22 gallons |
1 cubic foot of water weights 2205 lb.=220.5 imperial gallons |
1 gallons of water weight 10 lb. petrolium 82 lb./gallons. |
1 ton of water=35.9 cu.ft=244 imp.galls=1000 litres(app) |
1 ton petroleum 275 imperial gallons. |
1 litre of water weight 1 kilogramme=2.204lb |
Density of water-62.4 lb./cu ft.gm./ cu.cm. |
Density of Oil-50 lb. lb.cu.ft.=0.8 gm./cu. cm |
Density of Air 0.078 lb. cu.ft.=0.00125 gm./cu.cm. |
1 United States gallons=3.8 litres. 1 litres 264 U.S. gallon |
1 Cubic foot of water=7.476 United States gallons |
Pressure of atmoshphere=14.7 lb per Square inch |
Pressure in lb.per sq.inch=head of water in feet.*.424 |
Head i feet=pressure in lb.. per sq.inch*2.31 |
300 lb./in2 working pressure=700 ft.head=20 atmos. or 21 kilos/sq.cm |
The quantity of water in cub.ft./min. flowing through a pipe at the rate of 3 feet per second in found approximately by squaring the diameter of the pipe in inches. |
1 brake horse power=33,000 ft.lb. per min=550 ft, lb.per sec |
1 forcede cheval=75 kilogrammeters per sec=542.5 ft.lb./sec. |