. The elements of railroad engineering . essel after the pressurein the first has been raised to 40 pounds per square inch ? Ans. lb. per sq. in. 3. If cubic feet of air having a tension of 52 pounds per squareinch and a temperature of 170° are mixed with 13 cubic feet having atension of 78 pounds per square inch and a temperature of 265°, whatmust be the volume of the vessel containing the mixture in order thatthe tension of the mixture may be 30 pounds per square inch and thetemperature 80° ? Ans. cu. ft. PNEUMATIC MACHINES. THE AIR PUMP. 1064. The air pump is an instrument f
. The elements of railroad engineering . essel after the pressurein the first has been raised to 40 pounds per square inch ? Ans. lb. per sq. in. 3. If cubic feet of air having a tension of 52 pounds per squareinch and a temperature of 170° are mixed with 13 cubic feet having atension of 78 pounds per square inch and a temperature of 265°, whatmust be the volume of the vessel containing the mixture in order thatthe tension of the mixture may be 30 pounds per square inch and thetemperature 80° ? Ans. cu. ft. PNEUMATIC MACHINES. THE AIR PUMP. 1064. The air pump is an instrument for removingair from an enclosed space. A section of the principal partsis shown in Fig. 192, and the complete instrument in The closed vessel R is called the receiver, and thespace which it encloses is that from which it is desired to re-move the air. The receiver is visvially made of glass, and 422 PNEUMATICS. the edges are ground so as to be perfectly air-tight. Whenmade in the form shown, it is called a bell jar
Size: 906px × 2758px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1800, bookdecade1890, booksubjectrailroadengineering
