Abstract
In the paper Vol.3 No.1 the experimental formulas for the rational value of the water poured to the burning timbers were obtained. In this paper, the differences between the water used to extinguish actual fire and the above rational value are examined from the following four causes :
(1) Parts of water are poured to something except the burning timbers.
(2) Parts of water are over to the rational value.
(3) Water poured during changing the positions of the nozzles is generally useless.
(4) Water is repeatedly poured to the same timbers.
