11Kick's law of size reduction applies best to:ACoarse crushingBFiltrationCVery fine grindingDMixingView AnswerDiscussWorkspaceReportSaveEasy
12If a particle's diameter doubles, its Stokes' law settling velocity becomes:AHalfBEight timesCTwiceDFour timesView AnswerDiscussWorkspaceReportSaveMedium
13Screening separates particles by:ASizeBColourCChemical compositionDDensityView AnswerDiscussWorkspaceReportSaveEasy
14The critical speed of a ball mill is the speed at which:AThe mill stopsBGrinding is fastestCBalls stop movingDBalls cling to the shell and stop tumblingView AnswerDiscussWorkspaceReportSaveEasy
15Rittinger's law relates size-reduction energy to:ATemperatureBVolumeCWeight onlyDNew surface area producedView AnswerDiscussWorkspaceReportSaveEasy