【判断题】
(35957)主流河槽处流速大,河滩处流速小。(1.0分)
A. 对
B. 错
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答案
A
解析
暂无解析
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(35958)回声仪测深适合于任何河流。(1.0分)
A. 对
B. 错
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(35959)桥梁上伸缩调节的尖轨尖端应与线路方向一致。(1.0分)
A. 对
B. 错
【判断题】
(35960)喷射钢纤维混凝土时,钢纤维掺加量越多,混凝土强度越高。(1.0分)
A. 对
B. 错
【判断题】
(35961)混凝土一般在昼夜平均气温10℃以上条件上进行,低于10℃按冬期施工办理。(1.0分)
A. 对
B. 错
【判断题】
(35962)拱涵的缺点是使用钢筋水泥较多。(1.0分)
A. 对
B. 错
【判断题】
(35963)当气温低于5℃时,不得对混凝土洒水养生。(1.0分)
A. 对
B. 错
【判断题】
(35964)当气候相对湿度大于80%时,混凝土养生不必洒水。(1.0分)
A. 对
B. 错
【判断题】
(35965)平板式振动器,适用于大体积和配筋较稀的混凝土工程。(1.0分)
A. 对
B. 错
【判断题】
(35966)混凝土拌制运至灌注地点有离析现象时,可加水进行第二次搅拌。(1.0分)
A. 对
B. 错
【判断题】
(35967)梁弯曲时截面上的正应力是沿截面高度呈直线规律分布的,中性轴处应力为零。(1.0分)
A. 对
B. 错
【判断题】
(35968)力矩以顺时针转动为正。(1.0分)
A. 对
B. 错
【判断题】
2/9961.(35969)两根材料不同、截面不同的杆件,受相同的轴向拉力作用时,它们的内力不同。(1.0分)
A. 对
B. 错
【判断题】
(35970)灌注混凝土时,水泥用量越多,混凝土结构性能越好。(1.0分)
A. 对
B. 错
【判断题】
(35971)在混凝土中凡粒径为0.15~5mm的沙子称为细骨料,大于5mm的称为粗骨料。(1.0分)
A. 对
B. 错
【判断题】
(35972)已冻结的砂浆加热水搅拌后,可以使用。(1.0分)
A. 对
B. 错
【判断题】
(35973)手工电弧焊时,为防止产生气孔应采用短弧焊。(1.0分)
A. 对
B. 错
【判断题】
(35974)在离地面3m以上的高空和陡坡上施工叫高空作业。(1.0分)
A. 对
B. 错
【判断题】
(35975)钩螺栓的作用是使桥枕与护木紧密连接,防止护木上下跳动和横向移动。(1.0分)
A. 对
B. 错
【判断题】
(35976)钢梁联结系的作用,是把两片主桁架联结形成一个稳定的空间体系,并承受横向荷载。(1.0分)
A. 对
B. 错
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(35977)石拱桥可以就地取材,自重轻,施工简单。(1.0分)
A. 对
B. 错
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(35978)多台电焊机可以共同使用一个电源开关。(1.0分)
A. 对
B. 错
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(35979)三力会交定理,是指共面不平行的三个力不在同一平面上。(1.0分)
A. 对
B. 错
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(35980)涵洞的孔径与样式,应根据流量大小,路基高低,地质情况,标高要求,施工条件等作技术 经济比较后决定。(1.0分)
A. 对
B. 错
【判断题】
(35981)A、B两点高差hAB=a-b,hAB为正,说明a大于b,B点低于A点。(1.0分)
A. 对
B. 错
【判断题】
(35982)精密水准测量的误差主要来源有:仪器误差,观测误差,外界条件的影响。(1.0分)
A. 对
B. 错
【判断题】
(35983)精密水准测量观测顺序,往测奇数站为后、前、前、后。(1.0分)
A. 对
B. 错
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(35984)下承式板梁桥适宜铺设无缝线路。(1.0分)
A. 对
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(35985))所有的钢结构缝隙必须用腻子填塞。(1.0分)
A. 对
B. 错
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(35986)钢筋混凝土构件中钢筋起抗拉作用。(1.0分)
A. 对
B. 错
【判断题】
(35987)精密过河水准测量,河道两岸的水平视线距水面的高度应大致相等并不大于2m。(1.0分)
A. 对
B. 错
【判断题】
(35988)跨河水准测量,当桥长在200m至500m之间时,采用四等水准测量进行。(1.0分)
A. 对
B. 错
【判断题】
(35989)全圆测回法,在每个测回开始时进行度盘变位是为了消除读数误差。(1.0分)
A. 对
B. 错
【判断题】
(35990)钢丝绳中有半股钢丝折断时,应予报废。(1.0分)
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(35991)空压机启动时应该完全关闭供气阀。(1.0分)
A. 对
B. 错
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(35992)闪光对焊中如果接头区域产生裂纹时,可以通过降低变压器级数来解决。(1.0分)
A. 对
B. 错
【判断题】
(35993)木材的干燥是杜绝菌虫生存条件,防止腐朽的一种措施。(1.0分)
A. 对
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(35994)位于水坝下游的桥梁应注意检查坝下的局部冲刷和清水冲刷的影响。(1.0分)
A. 对
B. 错
【判断题】
(35995)新奥法施工允许隧道围岩变形,直到变形稳定后才进行支护。(1.0分)
A. 对
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(35996)测回法测角计算角值时,应用大的读数减去小的读数。(1.0分)
A. 对
B. 错
【判断题】
(35997)采用机械开挖基坑时,应保留一定厚度由人工开挖。(1.0分)
A. 对
B. 错
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