International Correspondence Schools · Scranton, Pa. : The Colliery engineer co. · leaf 415
2 ft. per sec. 4. In the last exam])lf, what is the discharge in gallons jwr minute ? Ans. 140.39 gal. per min. 5. What head is necessary in order that a 4-inch pijw, 1,2(M) feet long,may disciiarge 10,H(¥) gallons of water per hour? Ans. 27.1 ft. 6. What must be the diameter of a pipe that is… … 1039. Pneumatics is that branch of Mechanics whichtreats of the properties of gases. 1040. The most strikingfeature concerning gases is that,no matter how small the quan-tity may be, they zvill ahvaysfill the vessels which containthem. If a bladder or footballis partly filled with air andplaced…
Railroad engineering
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