Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . P - Aadd-iesS V-tftcLt/c/vajey V<zncf r-£4e*mo/n tic* -1—1 -3 - s -1 - 1 Figure 5 which is then closed and the weight released. At themoment the weight passes the 10 ft. mark on the scalethe thermometer attached to the cylinder will indicatethat the temperature of the water has been raised onedegree. Then multiplying the number of pounds in 26 LOCOMOTIVE ENGINEERING the weight by the distance in feet through which it fe
Cyclopedia of locomotive engineering, with examination questions and answers; a practical manual on the construction care and management of modern locomotives . P - Aadd-iesS V-tftcLt/c/vajey V<zncf r-£4e*mo/n tic* -1—1 -3 - s -1 - 1 Figure 5 which is then closed and the weight released. At themoment the weight passes the 10 ft. mark on the scalethe thermometer attached to the cylinder will indicatethat the temperature of the water has been raised onedegree. Then multiplying the number of pounds in 26 LOCOMOTIVE ENGINEERING the weight by the distance in feet through which it fellwill give the number of foot pounds of work , lbs. x 10 ft. = 77S foot pounds. The heat unit or British thermal unit (B. T. U.) isthe quantity of heat required to raise the temperatureof one pound of water one degree, or from 39 to 4D~F., and the amount of mechanical work required toproduce a unit of heat is 77S foot pounds. Thereforethe mechanical equivalent of heat is the energy re-quired to raise 77S lbs. one foot high, or lbs. 10 , or 1 lb. 77S feet high. Or again, suppose a one-pound weight falls through a space of 77S
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectlocomot, bookyear1916
