3-24.3-25.3-26.3-27.3-28.3-29.3-30.3-31.Coars-grained sils are dividedinto what divisions?1.Silt and sand2.Clay and gravel3.Sand and gravel4.Clay and siltTo classify a coarse-grained soil,you would use what sieve?1. 1/4 inch2. No. 43. No. 504. No. 200Coarse-grained soils with more than12-percent fines are classified bywhat characteristic(s)?1.Cohesiveness2.Liquid limit3.Plasticity index4.Both 2 and 3 aboveFor a soil sample to be classifiedas silty gravel, the plasticityindex should be1.more than 72.between 4 and 73.less than 44.unmeasurableCoarse-grained soils with between5- and 12-percent fines areclassified in what manner?1.By dual symbols2.As clayey silts3.As nonplastic, nonliquid soils4.As silty claysA borderline soil may meet morethan one zone requirement.1.True2.FalseFine-grained soils are classifiedbased on what requirement?1.Plasticity index2.Grain-size distribution3.Percentage of organic material4.Liquid limitPlastic silts have what groupdesignation?1. MH2. ML3. MP4. MW3-32.3-33.3-34.Peat is identified in what manner?1.By grain-size distribution2.By liquid limit determination3.By odor4.By plasticity indexdeterminationCc is defined as the coefficient of1.uniformity of the grain-sizecurve2.gradation3.curvature of the gradationcurve4.distributionTo determine the coefficient ofuniformity, you must have whatinformation?1.Percent retained on the No. 10and No. 60 sieves2.Percent passing the No. 10 andNo. 60 sieves3.Grain size, in centimeters, at10- and 60-percent passinglevels on the gradation curve4.Grain size, in millimeters, at10- and 60-percent passinglevels on the gradation curverYOU HAVE COMPLETED A SIEVE ANALYSIS WITHTHE FOLLOWING RESULTS:SIEVE SIZEPERCENT PASSING1/2 IN.1001 IN.743/4 IN.571/2 IN.40NO. 427NO. 1022NO. 4014NO. 608NO. 1005NO. 2003.8Figure 3AIN ANSWERING QUESTIONS 3-35 THROUGH 3-39,USE THE INFORMATION FROM FIGURE 3A.3-35.What is the value of D60 for thissoil sample?1.7.2 mm2.20.0 mm3.29.6 mm4.37.3 mm3-36.What is the coefficient ofuniformity (CU) of this soil sample?1.18.12.32.73.48.94.66.716
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