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<br />3~07 <br /> <br />3..{)7. <br /> <br />Sll.:?LE CO:.n?"~llIOI{ <br /> <br />e.. Ex:.l1ib1 t 2 shows the p~otting of a frequency curve of <br />SZl.tLUi"~ peak nOW's corresponding to those tabulated on exhibit 3. <br />.T.!1.e CUl"'Ve shouJ.d be il:l:'awn so as to balllJ:lcc out the plotted ;points <br />to a reasonable degree o.nd so that there is no abrupt 'break in <br />-e'l'" :t:::e,C/.r:.er.,;;,y curve. Ucless con.'1JUted as discussed in section 4, <br />t:-,e f'requcncy curve shouJ.d be drlWU ase. straight line on the grid <br />,il:.cr:.evi.lr &:t.ta reason.ably indica.te s straight line and condit!. ons <br />do r.ot exist tbat would ma.koo. straight line unreasollAb~e. <br /> <br />b. The partie.l-duretioo. curve corresponding to the partiaJ.- <br />durv;l;lcr.l d;;;'c;a on exhibit 3 has been slJc;m on exh1bi t 8. . This <br />CIll"ITG hIlS been draWn by gelaoOllrallyblLlumcing out the plotted ;points <br />e;:::coJ1c; th::.t it was ll::l.de to con;f'om with the e.nnuaJ..-event curVe in <br />the UJ:lpar portion in general accord with the sta.ndard relll.t1onsbip <br />Ciisc1:J;sec:. in r-c.ra.graJih 4-,.0~. . When r-artio.l-duxation d&ta must . <br />in.::hlJie t:OZ'e events than the..." arc y= of record. (see paragraph <br />3-02) .it v':'ll be necessary to usa lot;m1:t;hm1c ps.per for plotting <br />1'.="::':'$"13, as on exhibitS, in order to plotexceedence frequencies <br />G"Nater 'ch= 100 :percent. OtheriJ'iae, the cut'va cSll be plottod a::I. <br />?..-o::,.;;.bilit-y g;r'id, e.s illuotra.ted Oil. exhibit 20'- <br /> <br />c. Exhibit 10 illustrate.. the gra]?1licaJ. construction of a. <br />r1ver-:'tas-e frequel!.CY' curve. Theshe.1lElofthis cme is dictated <br />'oy. the plotted points and, in soma cases, by consideration of the <br />st:l.ge <:.1; which over'betik nO'..rs begl.n. Whenever stage 1s a conais- <br />te;::t fU!i.ction of f~OW', as is the usual case, the etage~requency <br />curve should be obtained frOtll.tbe fl.ov-frequency and stage-d1scharse <br />curves. <br /> <br />- 14 - <br /> <br />v <br />