Page:Fires and Fire-fighters (1913).djvu/526

From Wikisource
Jump to navigation Jump to search
This page has been validated.
410
FIRES AND FIRE-FIGHTERS

20.25 × .0034 equals .06885, displacement in gallons of plunger rod.

2.2032 less .06885 equals 2.13435 gallons, net displacement per revolution.

2.13435 × 300 equals 640 gallons, capacity of pump.