. Gasoline characteristics . 36. 37 This method was warranted by the fact that many small errorscreep in which would throw the curve off more than the dis-tance which seme of the points are from the general of the points were checked several times and these weregiven more weight in plotting the curve than other morequestionable points. After the light nans it was noticed that theliquid did not always return to the zero mark. The cause ofthis was the lack of sensitiveness of the upper float. Thiswas remedied somewhat by carefully leveling the float and ad-justing all the moving parts
. Gasoline characteristics . 36. 37 This method was warranted by the fact that many small errorscreep in which would throw the curve off more than the dis-tance which seme of the points are from the general of the points were checked several times and these weregiven more weight in plotting the curve than other morequestionable points. After the light nans it was noticed that theliquid did not always return to the zero mark. The cause ofthis was the lack of sensitiveness of the upper float. Thiswas remedied somewhat by carefully leveling the float and ad-justing all the moving parts so that they worked freely. Ifthe pin of the needle valve had been of a smaller taper, theinstrument would probably have been more sensitive. By meansof the flooder (B), the float could be lifted and enough gaso-line allowed to run in to bring the level back to the zeromark. Another probable cause of error was the suckingeffect due to the level of the end of the outlet tube (E).A change of this level would cause a change of suct
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