單項(xiàng)選擇題干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.02.51.250.630.3150.16<0.16
篩余量(g22.552.5102.5122.5102.572.525.0
求累計(jì)篩余百分率(%)。累計(jì)篩余百分率(%)A6為()
A.35.5
B.95
C.60
D.80.5
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1.單項(xiàng)選擇題干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.02.51.250.630.3150.16<0.16
篩余量(g22.552.5102.5122.5102.572.525.0
求累計(jì)篩余百分率(%)。累計(jì)篩余百分率(%)A5為()
A.15
B.35.5
C.60
D.80.5
2.單項(xiàng)選擇題干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.02.51.250.630.3150.16<0.16
篩余量(g22.552.5102.5122.5102.572.525.0
求分計(jì)篩余百分率(%)。累計(jì)篩余百分率(%)A4為()
A.15
B.35.5
C.60
D.80.5
3.單項(xiàng)選擇題干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.02.51.250.630.3150.16<0.16
篩余量(g22.552.5102.5122.5102.572.525.0
求分計(jì)篩余百分率(%)。累計(jì)篩余百分率(%)A3為()
A.15
B.35.5
C.60
D.80.5
4.單項(xiàng)選擇題干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.02.51.250.630.3150.16<0.16
篩余量(g22.552.5102.5122.5102.572.525.0
求分計(jì)篩余百分率(%)。累計(jì)篩余百分率(%)A2為()
A.15
B.35.5
C.60
D.80.5
5.單項(xiàng)選擇題
干砂500g,其篩分結(jié)果如下:
篩孔尺寸(mm)5.0 2.5 1.25 0.63 0.315 0.16<0.16
篩余量(g)22.5 52.5 102.5 122.5 102.5 72.5 25.0
求分計(jì)篩余百分率(%)。
A.14.5
B.10.5
C.20.5
D.24.5