公路工程试验检测试卷库r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy《材料》试题r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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姓名r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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准考证号r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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成绩r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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一.单项选择r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
1.钢材焊接拉伸试验,一组试件有2根发生脆断,应再取( Cr{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
)根进行复验。r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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A. 2r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
B.r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
4r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
C . 6r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
2.配制混凝土用砂的要求是尽量采用(Dr{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
)的砂。r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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A.空隙率小r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
B、总表面积小r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
C、总表面积大r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
D、空隙率和总表面积均较小r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
3.中砂的细度模数MX为(B )。r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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A、3.7~3.1 B、3.0~2.3 C、2.2~1.6 D、1.4r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
4. EDTA滴定法快速测定石灰土中石灰剂量试验中,钙红指示剂加入石灰土和氯化铵反应中,溶液呈r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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] 色。r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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A .玫瑰红r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
B .黄r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
C .红r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
D .兰r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
5、氧化镁含量为(A )是划分钙质石灰和镁质石灰的界限。r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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A、5% B、10% C、15% D、20%r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy
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详见附件r{iî¿ÔÚbbs.3c3t.com¦²ê²j*§Zy