[求助] 求教几个不懂的材料问题 [复制链接]

小弟以前没有接触过检测,这次复习备考有好些看书也没找到答案的问题,请哪位知道的帮忙解答一下,谢谢了„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
1拌和沥青混合料时，一般矿料本身的温度应（ ）。„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    A、高于拌和温度；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    B、低于拌和温度；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    C、与拌和温度相同；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    D、视混合料类型定。„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
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2对同一种土体分别用直剪试验的三种方法进行试验，所得内摩擦角最大的为（ ）„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    A、快剪„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    B、慢剪„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    C、固结快剪„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    D、不确定„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
3软化点试验，升温速度过慢，软化点测值（ ）。„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    A、偏大；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    B、偏小；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    C、因沥青而异；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    D、无影响。„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
4一马歇尔试件的质量为1200g，高度为65.5mm，制作标准高度为63.5mm的试件，混合料的用量应为（ ）。（请说说是怎么计算的）„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    A、1152g；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    B、1182g；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    C、1171g；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    D、1163g„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
5如果已知某沥青等级为90，则在针入度试验中三次平行试验的最大值和最小值间的允许偏差为（ ）（0.1mm）。„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    A、4；„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    B、3;„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    C、2;„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
    D、6;„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì
6。国家规定的水泥初终凝时间各是多少？   7：精确数值后的数字是四舍五入还是别的处理方法？„cHf¨j·¥Šbbs.3c3t.com‹&Œ$˦äì