【判断题】
人工开挖土方时，两个人操作间距应保持1-2m，并应自上而下逐层挖掘
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相关试题
【判断题】
施工现场现浇的水平混凝土构件包括梁、板（楼板、屋面板）的模板支撑结构（支撑体系）是模板工程的重要组成部分，也是一项重要的安全技术
【判断题】
模板安装前要审查设计审批手续是否齐全，模板结构设计与施工说明中的荷载、计算方法、节点构造是否符合实际情况，是否有安装拆除方案
【判断题】
拼装高度为2m以上的竖向模板，可站在下层模板上拼装上层模板
【判断题】
竖向模板支架支承部分安装在基土上时，应加设垫板；如用钢管作支撑时在垫板上应加钢底座。垫板应有足够强度和支承面积
【判断题】
拆模之前必须有拆模申请，当混凝土养护试块强度达到规定要求时，经技术负责人批准后，方可拆模
【判断题】
拆摸时下方如果有人，拆模区应设警戒线，以防有人被砸伤
【判断题】
在拆模过程中，如发现实际混凝土强度并未达到要求，有影响结构安全的质量问题时，应暂停拆模，经妥当处理，实际强度达到要求后，方可继续拆除
【判断题】
钢丝绳在使用过程中会不断的磨损、弯曲、变形、锈蚀和断丝等，不能满足安全使用时应予报废，以免发生危险
【判断题】
钢丝绳在卷筒上缠绕时，要逐圈紧密地排列整齐，不应错叠或离缝
【判断题】
吊钩由于长期使用产生剥裂，必须对其焊接修补后方可继续使用
【判断题】
选用滑轮时，轮槽宽度应比钢丝绳直径大1～2.5mm
【判断题】
采用桅杆滑移法吊装作业，吊装过程中，工件绝对禁止碰撞桅杆
【判断题】
机械拆除建筑时，严禁机械超载作业或任意扩大机械使用范围
【判断题】
不同级别的爆破拆除工程有相应的设计施工难度，爆破拆除工程设计必须按级别经当地有关部门审核，做出安全评估和审查批准后方可实施
【判断题】
拆除施工在立体交叉、水平作业时，各工位间应有一定的安全距离
【判断题】
当临街的被拆除建筑与交通道路的安全距离不能满足要求时，必须采取相应的安全隔离措施
【判断题】
拆除原用于有毒有害、可燃气体的管道及容器时，必须查清其残留物的种类、化学性质，采取相应措施后，方可进行拆除施工
【判断题】
拆除工程施工时，设专人向被拆除的部位洒水降尘，减少对周围环境的扬尘污染
【判断题】
拆除工程施工过程中，当发生重大险情或生产安全事故时，应及时排除险情、组织抢救、保护事故现场，并向有关部门报告
【判断题】
装载机在倾斜的场地上作业时，作业区内不得有障碍物及无关人员
【判断题】
驾驶司机离开挖掘机驾驶室，不论时间长短必须将铲斗落地并关闭发动机
【判断题】
桩机作业时，严禁闲人进入。操作人员应在距桩锤中心3m以外监视
【判断题】
当风速超过七级，应将桩机顺风向停置，并增加缆风绳
【判断题】
打桩作业时，严禁在桩机垂直半径范围以外和桩锤或重物底下穿行停留
【判断题】
搅拌机作业中，当料斗升起时，严禁任何人在料斗下停留或通过
【判断题】
搅拌机在作业期较长的地区使用时，可用支腿将机架支起后，就可使用
【判断题】
搅拌机搅拌过程不宜停车，如因故必须停车，在再次启动前应卸除荷载，不得带载启动
【判断题】
切断机运转中，严禁用手清除切刀附近断头和杂物
【判断题】
钢筋切断机未达到正常运转时，不可切料。送料时应在固定刀片一侧握紧并压住钢筋，以防钢筋末端弹出伤人。可用两手分在刀片握住钢筋俯身送料
【判断题】
灰浆搅拌机运转中，不得用手或木棒等伸进搅拌筒内或在筒口清理灰浆
【判断题】
圆盘锯的安全防护装置包括分料器、锯盘护罩、防护挡板和传动部位防护罩
【判断题】
当塔机吊重超过最大额定起重量并小于最大起重量的110%时，应停止提升方向的运行，但允许机构有下降方向的运动
【判断题】
当起重力矩超过其相应幅度的规定值并小于规定值的110%时，起重力矩限制器应起作用使塔机停止提升方向及向臂根方向变幅的动作
【判断题】
塔机司机对任何人发出的紧急停止信号，均应服从
【判断题】
吊笼（梯笼）是物料提升机运载人和物料的构件，笼内有传动机构、限速器及电气箱等
【判断题】
动臂式和尚未附着的自升式塔机，塔身上不得悬挂标语牌
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and are the stock in trade of all who___the language. Such words may be called “popular”,
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since they belong to the people___and are not the exclusive share of a limited class. On the other hand,
