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【单选题】
___0249.“只有安全装置关合时,机器才能运转;而只有机器的危险部件停止运动时,安全装置才能开启。”这是( )安全装置的原理。
A. 固定
B. 联锁
C. 隔离
D. 可调
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答案
B
解析
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相关试题
【单选题】
___0250.二硫化碳的设备、管道、阀门、考克、液面计等处应当严密无泄漏,各法兰处装设接地片,并接地良好。地面上的贮罐应有( )装置。
A. 防潮
B. 防虫
C. 防爆
D. 降温
【单选题】
___0251.《纺织工业企业安全管理规范》(AQ 7002—2007)规定,二硫化碳贮罐必须( ),操作平台应装设围栏。
A. 少于一半浸入水中
B. 多于一半浸入水中
C. 全部浸入水中
D. 全部浸入油中
【单选题】
___0252.三相用电设备中配置有单相用电器具时,应选用( )芯电缆。
A. 五
B. 四
C. 三
D. 二
【单选题】
___0253.当连锁机械少且分散时,胶带运输线的控制宜采用( )。
A. 局部集中控制
B. 连锁分散控制
C. 室内集中控制
D. 自动控制
【单选题】
___0254.禁止标志,代表的意义为( )。
A. 禁止人们做出不安全行为的图形标志
B. 强制人们必须做出某种动作或采用防范措施的图形标志
C. 提醒人们对周围环境引起注意的图形标志
D. 向人们提供某种信息的图形标志
【单选题】
___0255.《安全标志及其使用导则》(GB 2894—2008)规定,( )标志是指用以表达特定安全信息的标志,由图形符号、安全色、几何形状(边框)或文字构成。
A. 安全
B. 禁止
C. 警告
D. 指令
【单选题】
___0256.( )是指传递安全信息含义的颜色,包括红、蓝、黄、绿四种颜色。
A. 警告标志
B. 禁止标志
C. 安全标志
D. 安全色
【单选题】
___0257.( )标志是指禁止人们不安全行为的图形标志。
A. 安全
B. 警告
C. 禁止
D. 提示
【单选题】
___0258.( )标志是指提醒人们对周围环境引起注意,以避免可能发生危险的图形标志。
A. 禁止
B. 警告
C. 指令
D. 提示
【单选题】
___0259.( )标志是强制人们必须做出某种动作或采用防范措施的图形标志。
A. 警告
B. 安全
C. 指令
D. 提示
【单选题】
___0260.( )标志是指向人们提供某种信息(如标明安全设施或场所等)的图形标志。
A. 指令
B. 提示
C. 警告
D. 禁止
【单选题】
___0261.( )标志是指向人们提供特定提示信息(标明安全分类或防护措施等)的标记,由几何图形边框和文字构成。
A. 提示
B. 指令
C. 禁止
D. 说明
【单选题】
___0262.( )标志是指所提供的信息涉及较大区域的图形标志,标志种类代号:H。
A. 说明
B. 提示
C. 局部信息
D. 环境信息
【单选题】
___0263.( )标志是指所提供的信息只涉及某地点,甚至某个设备或部件的图形标志。标志种类代号:J。
A. 指令
B. 禁止
C. 局部信息
D. 环境信息
【单选题】
___0264.“禁止堆放”标志应设置的范围和地点是( )等。
A. 木工车间
B. 高处作业现场
C. 变压器室
D. 消防通道
【单选题】
___0265.“禁止乘人”标志应设置的范围和地点是乘人易造成伤害的设施,如( )等。
A. 乙炔站
B. 油漆车间
C. 高处作业现场
D. 室外运输吊篮
【单选题】
___0266.“禁止跨越”标志应设置的范围和地点是禁止跨越的危险地段,如( )等。
A. 油漆车间
B. 专用的运输通道
C. 变压器室
D. 化工药品库
【单选题】
___0267.“当心感染”标志应设置的范围和地点是易发生感染的场所,如( )等地点。
A. 医院传染病区
B. 污染源
C. 变压器室
D. 油漆车间
【单选题】
___0268.“必须戴防尘口罩”标志应设置的范围和地点是具有粉尘的作业场所,如:( )、粉状物料拌料车间以及矿山凿岩处等。
A. 纺织清花车间
B. 施工工地
C. 仓库
D. 车间
【单选题】
___0269.“避险处”标志应设置的范围和地点是铁路桥、公路桥、矿井及( )内躲避危险的地点。
A. 施工工地
B. 变压器室
C. 隧道
D. 化工药品库
【单选题】
___0270.提示标志提示目标的位置时要加( )标志。
A. 警示
B. 禁止
C. 方向辅助
D. 文字辅助
【单选题】
___0271.《安全标志及其使用导则》(GB 2894—2008)规定,横写时,文字辅助标志写在标志的( );竖写时,文字辅助标志写在标志杆的( )。
A. 上方;上部
B. 上方;下部
C. 下方;下部
D. 下方;上部
【单选题】
___0272.“必须系安全带”标志应设置的范围和地点是易发生坠落危险的作业场所,如( )等地点。
A. 高处建筑
B. 仓库
C. 纺织厂
D. 木工车间
【单选题】
___0273.《安全标志及其使用导则》(GB 2894—2008)规定,安全标志牌至少每( )检查一次,如发现有破损、变形、褪色等不符合要求时应及时修整或更换。
A. 周
B. 月
C. 半年
D. 年
【单选题】
___0274.提示标志的基本型式是( )。
A. 带斜杠的圆边框
B. 正三角形边框
C. 圆形边框
D. 正方形边框
【单选题】
___0275.“当心中毒”标识是( )标识。
A. 禁止
B. 警告
C. 指令
D. 指示
【单选题】
___0276.“禁止入内”标识是( )标识。
A. 禁止
B. 警告
C. 指令
D. 指示
【单选题】
___0277.“戴防毒面具”标识是( )标识。
A. 禁止
B. 警告
C. 指令
D. 指示
【单选题】
___0278.“救援电话”标识是( )标识。
A. 禁止
B. 警告
C. 指令
D. 指示
【单选题】
___0279.警示线是界定和分隔危险区域的标识线,分为( )。
A. 红色、黄色和绿色三种
B. 红色、黄色和蓝色三种
C. 红色、黄色和黑色三种
D. 红色、绿色和黑色三种
【单选题】
___0280.在高毒物品作业场所,设置( )警示线。在一般有毒物品作业场所,设置( )警示线。
A. 红色;蓝色
B. 红色;黄色
C. 红色;黑色
D. 红色;绿色
【单选题】
___0281.在可能产生职业性灼伤和腐蚀的作业场所,设置( )警告标识。
A. 噪声有害
B. 注意高温
C. 当心感染
D. 当心腐蚀
【单选题】
___0282.安全色中,红色代表的含义是( )。
A. 禁止和阻止
B. 指令,要求人们必须遵守的规定
C. 提醒人们注意
D. 给人们提供允许、安全的信息
【单选题】
___0283.安全色中,( )色表示给人们提供允许、安全的信息。
A. 红
B. 黄
C. 蓝
D. 绿
【单选题】
___0284.氨制冷机房贮氨器上方应设置( )。
A. 警示标识
B. 操作说明
C. 水喷淋系统
D. 报警装置
【单选题】
___0285.蓝色传递( )信息。
A. 警告
B. 必须遵守的指令性
C. 安全提示
D. 禁止
【单选题】
___0286.黄色警示线,表示( )。
A. 为高毒物品作业场所,放射作业场所,紧邻事故危害源周边
B. 为一般有毒物品作业场所,紧邻事故危害区域的周边
C. 为事故救援现场区域的周边
D. 火灾事故现场周边
【单选题】
___0287.绿色警示线,表示( )。
A. 为高毒物品作业场所,放射作业场所,紧邻事故危害源周边
B. 为一般有毒物品作业场所,紧邻事故危害区域的周边
C. 为事故救援现场区域的周边
D. 火灾事故现场周边
【单选题】
___0288.黄色传递( )信息。
A. 注意、警告
B. 必须遵守规定的指令性
C. 安全提示性
D. 禁止、停止、危险
【单选题】
___0289.安全标志中,黄色与黑色相间条纹表示( )。
A. 指令的安全标记,传递必须遵守规定的信息
B. 禁止或提示消防设备、设施位置的安全标记
C. 危险位置的安全标记
D. 安全环境的安全标记
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【单选题】
22. —Do you know the boy________ is sitting next to Peter? — Yes. He is Peter’s friend. They are celebrating his ________ birthday. A. who; ninth B. that; ninth C. /; ninth D. which; ninth
A. A
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23. It was dark, ______ I couldnt see what was happening. A. or B. though C. but D. so
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24.—You can use MSN to talk with Vivien on the Internet. —I know. But can you tell me ________? A. what I can use it B. when I can use it C. why can I use it D. how can I use it
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25. _______ are you going to the School Uniform Exhibition, Amy ? To learn about different styles of school uniform. A. What B. Where C. Which D. Why
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( ) 26. Where does the writer of "The little Prince" come from? A.England. B.France. C.America. D.China.
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【单选题】
( ) 27. What does the prince do after the fox tells him a secret? A.He cares more about a flower and a sheep. B.He meets many more strange adults on other planets. C.He realizes his love for the rose and he goes back to his planet.   D.He discovers interesting things such as a snake, other roses and a fox
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( ) 28. What does "The little Prince" mainly talk about? It' s about _________. A.the adult world B.the planet B -612 C.a rose and a fox D.the adventure of a young prince
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( ) 29. What is the writer's main purpose(目的)in writing this passage?    A.To tell the readers his life story.    B.To tell people what kind of person his father was.    C.To tell the readers what present he got from his father.    D. To let people know how poor he was.
A. A
B. B
C. C
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( ) 30. Why did the father not ask his son not to do this and do that?    A.Because he felt quite confident of his son.    B.Because he was born from a poor family.    C.Because he was a man of few words.    D.Because he didn't want to be much too strict with his son.
A. A
B. B
C. C
D. D
【单选题】
( ) 31. What would someone learn from this passage?    A.How to live by oneself. B.How to stand on one's own feet.    C.What a good father should do. D.What the self-important is like.
A. A
B. B
C. C
D. D
【单选题】
( ) 32. What may be the proper Chinese for the underlined part in the passage?    A.闲暇时光 B.学费 C.精神空虚 D.经济不足
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B. B
C. C
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( ) 33. Why did Natalie Smith pay for the six cars behind her? A. She had seven tickets. B. She hoped to please others. C. She knew the car drivers well. D. She wanted to show kindness.
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( ) 34. Judy Foreman copied down the phrase because she ___ . A. thought it was beautifully written B. wanted to know what it really meant C. decided to write it on a warehouse wall D. wanted her husband to put it up in the classroom
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B. B
C. C
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【单选题】
( ) 35. Who came up with the phrase according to the passage? A. Judy Foreman. B. Natalie Smith. C. Anne Herbert D. Alice Johnson.
A. A
B. B
C. C
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( ) 36. What can we infer from the last paragraph? A. People should practice random kindness to those in need. B. People who receive kindness are likely to offer it to others. C. People should practice random kindness to strangers they meet. D. People who receive kindness are likely to pay it back to the giver.
A. A
B. B
C. C
D. D
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( ) 37.The greatest river for navigation is ___________. A. the Nile B. the Amazon C. the Mekong D. the Mississippi
A. A
B. B
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( ) 38. From a dam, people can use the water for ___________. A. keeping the rivers clean B. only making electricity C. irrigation and making electricity D. washing clothes
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B. B
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【单选题】
( ) 39. The water in the river is polluted because of _____________. A. people's drinking water too much B. people's swimming in the river too much C. chemicals and other materials D. people's building a dam across a river
A. A
B. B
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( ) 40. The best title of the passage is ___________. A. Rivers in Cities B. The importance of Rivers C. Transportation D. Natural Resources
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