一.单选题ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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1.在水泥终凝时间测定前,在终凝针上安装了一个____ D ____。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
ÝA.方形附件B.小试针 C.时间测定仪D.环形附件ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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2.超声波在传播过程中碰到混凝土内部缺陷时,超声波仪上会出现A。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A、波形畸变、声时增加B、声速提高C、振幅增加ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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3.混凝土中钢筋腐蚀试验的试件的制作,每种技术条件制作4个试件,成型时A。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A、分两次浇筑ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B、分两层浇ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C、分三层浇ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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4、 含水率为4%的湿砂100kg,其中水的重量W=( A )kg。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A.W=100×4%=4kg ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B.W=100-100/(1+4%)=3.85kg ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C.W=(100-⑷×4%=3.84kgì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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D.3.58kgì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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5、 钻芯法检测时,钻取的混凝土芯样试件,制备成高度和直径均为100mm的芯样试件,按JTJ270测得的抗压强度值,是边长为150mm立方体的抗压强度的( C )。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A.1.5倍ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B.1.2倍ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C. 1倍ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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D. 0.8ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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6.在砂筛析试验中,应准确称取烘干试样( A)ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A500g B1000g ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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7.检测预应力混凝土用钢丝的抗拉强度时,取样数量为( A )。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A1根/盘ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B2根/盘ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C3根/盘ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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8..在试验室拌制混凝土时,一次拌和量不宜少于搅拌机容量的( A)。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A20%ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B25%ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C30%ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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9.水泥每验收批抽样不少于( C )。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A5㎏ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B 10㎏ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C 12㎏ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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10.做水泥胶砂强度抗折试验时,试件放入抗折夹具内,应使( C )与圆柱接触ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A.顶面 B.底面 C.侧面 D.随便放置ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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11 做砂子的颗粒级配试验时,如果两次试验的细度模数之差( C )超过时,须重新试验。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A.0.10 B.0.15 C.0.20 D.0.50 ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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二.多选题ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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1.用插捣法测定DM≤40mm的混凝土密度时,混凝土拌和物应ACE。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A、分三层装入容量筒,每次装入量大致相同,ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B、每层用捣棒均匀插捣15次,ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C、每捣一层完毕后应在容量筒外壁拍打10下,以消除表面气泡;ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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D、如有棒坑留下,用镘刀轻轻抹平;ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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E、试验结果计算至0.01kg/l。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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2、配制普通混凝土,粗骨料粒径最大粒径应符合( BD)要求。ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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A.不小于钢筋最小净距的3/4ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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B. 不大于钢筋最小净距的3/4ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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C.不小于构件截面最小尺寸的1/4ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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D. 不大于构件截面最小尺寸的1/4ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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E.不大于构件截面最大尺寸的1/4ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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三。判断题ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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1、 用高标号水泥配制低标号混凝土时,需采用掺混合材料措施,才能保证工程的技术经济要求。( √ )ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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2、石油沥青的软化点是指试样在测定条件下,因受热而下坠达24.5mm时的温度。(×)ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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3.测定碎石或卵石中的泥块含量用的两台称案的称量分别是20㎏、5㎏;感量分别是20g、10 g。( × )ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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4..水泥经检验凡氧化镁、三氧化硫、初凝时间、安定性中任一项不符合标准规定时,均为废品。( √ )ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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四简答题ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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1 简述2KP压力作用下土工布厚度的操作步骤ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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2 混凝土凝结时间测定ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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3闪光对焊不合格品的判定ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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4压碎指标的操作步骤ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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5砂的堆积密度试验ì¬\/.28Ø&bbs.3c3t.com¸S &ý_y
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