A.2hB.12hC.24hD.48h
单项选择题依据GB T14684-2011标准要求,亚甲蓝试验所取悬浮液滴应使沉淀物直径在()
A.8-10mmB.10-12mmC.8-12mmD.9-11mm
单项选择题依据GB T14684-2011标准要求,石粉含量的测定应筛除大于()的颗粒。
A.4.75mmB.2.36mmC.1.18mmD.0.60mm
单项选择题依据GB T14684-2011标准要求,()含泥量试验需要用到()的筛子。
A.0.60mm,1.18mmB.0.075mm,1.18mmC.0.60mm,2.36mmD.0.075mm,2.36mm
单项选择题依据GB T14684-2011标准要求,颗粒级配分计筛余精确至()%,单次累计筛余精确至()%,单次砂细度模数精确至(),两次累计筛余精确至()%,两次结果算术平均值精确至()。
A.0.01,0.1,0.1,0.1,0.1B.0.1,0.01,0.1,0.1,0.1C.0.1,0.1,0.01,1,0.1D.0.1,0.1,0.01,0.1,0.1
单项选择题依据GB T14684-2011标准要求,2区砂0.6mm累计筛余在()
A.16%-39%B.16%-40%C.41%-70%D.71%-85%