單項選擇題建設(shè)用砂含泥量檢測試驗時,試樣加水充分?jǐn)嚢韬笮杞荩ǎ?/strong>

A.1h
B.2h
C.3h
D.4h


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2.單項選擇題建設(shè)用砂含泥量檢測試驗時,稱取平行試樣兩個,各()g,精確至()g。

A.200,0.01
B.400,0.1
C.450,0.01
D.500,0.1

4.單項選擇題建設(shè)用砂含泥量檢測時,使用的方孔篩尺寸為()

A.2.36mm,0.15mm
B.1.18mm,0.15mm
C.2.36mm,0.075mm
D.1.18mm,0.075mm

5.單項選擇題建設(shè)用砂含泥量檢測時,不能使用的天平是()

A.量程10Kg,感量0.1g
B.量程15Kg,感量1g
C.量程1Kg,感量0.1g
D.量程15Kg,感量0.1g