【填空题】
46、火灾是是指在时间或空间上失去控制的 ___所造成的灾害。
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答案
燃烧
解析
暂无解析
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47、设备的设计、制造必须符合劳动安全卫生标准和有关技术规范的要求,各种设备的___装置必须齐全可靠,否则不得生产、销售、使用。
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48、常用的防坠落护具有安全带、安全绳和___三类。
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49、常用防噪声用品有___ 。
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50、为防止有毒汽体或15、电焊机一次侧电源线不得长于___ 米,二次侧不得长于___米。
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粉尘危害人体。应采取 ___ 和 ___ 措施。
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51、劳动保护用品是用来保护劳动者在生产劳动中 ___ 与 ___ 方面的专用物品。
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52、个人劳动防护用品是指劳动者在生产过程中为免遭或___事故伤害和职业危害的个人随身穿戴的用。
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53、___主要用于扑救汽油、煤油、柴油和木材等引起的火灾
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54、爆炸极限的范围越___,爆炸下限越___,爆炸危险性越大。通常的爆炸极限是在常温、常压的标准条件下测定出来的,它随温度、压力的变化而变化。
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55、固体物质形成持续燃烧的最低温度被称为___,它是评价固体物质危险性的重要特征参数之一。
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轨距是左右两股钢轨内侧顶面以下___处的距离。
A. 16mm
B. 15mm
C. 14mm
D. 13mm
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我国城市轨道交通采用___为标准轨距。
A. 1425mm
B. 1430mm
C. 1435mm
D. 1440mm
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作业验收时,轨距误差:规定宽不得超过___。
A. 4mm
B. 5mm
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作业验收时,轨距误差:规定窄不得超过___。
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在线路直线部分,轨距不应大于___。
A. 1438mm
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D. 1441mm
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在线路直线部分,轨距不应小于___。
A. 1431mm
B. 1432mm
C. 1433mm
D. 1434mm
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轨距测量在日常检查中,通常每___检查一处。
A. 6.20m
B. 6.25m
C. 6.30m
D. 6.35m
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轨距的变化率不超过___。
A. 5‰
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轨距的大小是由机车车辆的轮对___确定的。
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我国国家标准规定正直线轨距误差的允许范围为在___。
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我国国家标准规定正直线轨距误差的允许范围保养标准为___。
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我国国家标准规定正直线1m范围内轨距不得有___以上的误差。
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水平是指轨道上左右两股钢轨的___。
A. 长度
B. 距离
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在日常检查时,水平也用道尺进行检查,通常每___检查一处。
A. 6.25m
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《铁路技术管理规程》中规定:水平的允许误差,在维修线路的正线,到发线上,不得大于___。
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《铁路技术管理规程》中规定:水平的允许误差,在维修线路的正线,到发线上,不得大于4mm,其他线不得大于___为基准。
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B. 5mm
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水平的变化率不得超过___。
A. 4‰
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水平的变化率1m距离内,变化不得超过___。
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线路上先是左股钢轨高,后是右股钢轨高,当前后两点的水平正负误差的代数差超过___时为三角坑。
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在检查三角坑时,基长为6.25m,但在延长___的距离内应不允许出现三角坑。
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在正线上当曲线半径等于或小于___时,圆曲线与直线间应设置缓和曲线。
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在正线上当曲线半径___2000m时,圆曲线与直线间应设置缓和曲线。
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圆曲线的最小长度不应小于___。
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相邻曲线间的的夹直线的长度,在有缓和曲线时,不小于___。
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道岔应设在直线地段,道岔端部至曲线端部的距离不宜小于___,车场线可以减少到3m。
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正线与联络线上曲线半径小于___时,直线与圆曲线间要设缓和曲线。
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为保证行车安全,按《地铁设计规范》规定:实设最大超高,不得大于___。
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我国规定,允许最大未被平衡欠超高,一般为75mm,特殊情况为___。
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城市轨道交通的现有运营线,最大外轨超高为___。
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