【单选题】
电缆架空有困难时可以埋地（非铠装电缆禁止埋地），根据土质情况，埋地深度不宜小于 ___m。
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相关试题
【单选题】
电缆接头应架起___，有防雨、防损坏、防腐蚀措施，并有醒目警告牌。
A. 0.5m 以上
B. 0.4m 以上
C. 0.3m 以上
【单选题】
漏电保护器使用前应___启动漏电试验按钮试跳一次，试跳不正常时严禁继续使用。
【单选题】
使用时扣件螺栓拧紧扭力矩为___N・m。
A. 10-35
B. 20-40
C. 40-65
【单选题】
脚手架停用超过___个月需进行检查验收。
【单选题】
做人工呼吸需对病人 ___、托颏 、包唇 、吹气（两口)。
【单选题】
做心肺复苏胸外心脏按压频率___次/分。
A. 50-60
B. 100-120
C. 70-80
【单选题】
做心肺复苏胸外心脏按压深度___厘米。
【单选题】
做心肺复苏救援人员用上身力量用力按压___次需人工呼吸（ ）次。
【单选题】
做心肺复苏需要用左手___紧贴病人的胸部，两手重叠，左手五指翘起。
【单选题】
为 病人做心肺复苏前一定要确认周围环境___。
【单选题】
作业结束后，应对受限空间进行全面检查，清点人数和工具，确认无误后，施工单位和基层单位双方签字验收，___。
A. 然后才能离开
B. 交给业主单位管理
C. 人孔立即封闭
【单选题】
在进入受限空间进行救援之前，应明确监护人与救援人员的___。获得授权的救援人员均应佩戴安全带、救生索等以便救援，如存在有毒有害气体，应携带气体防护设备，除非该装备可能会阻碍救援或产生更大的危害。
【单选题】
进入受限空间作业一般伴随用火、高处作业、临时用电等相关作业一起产生，在做JSA分析时，应该___。
A. 挑风险度高的加以识别
B. 逐条识别并落实措施
C. 只识别进入受限空间的风险
【单选题】
进入受限空间作业需使用电动工具或照明电压大于12V时，应按规定安装___
A. 过载保护器
B. 接地保护器
C. 漏电保护器
【单选题】
进入受限空间作业停工期间，应在入口处设置___，严禁入内，并采取措施防止人员误进。
【单选题】
进入受限空间作业前应认真查看许可证内容，充分了解作业的内容、地点（位号）、时间和要求，熟知作业中的危害因素和___。
【单选题】
进入受限空间作业监护人要在___保持与作业人员的联系
A. 受限空间内
B. 受限空间外
C. 受限空间出入口处
【单选题】
进入受限空间作业，下列哪种情况作业人应向监护人报警或撤离受限空间___
A. 身体出现异常情况
B. 报警器报警
C. 两种都有
【单选题】
进入受限空间作业，如果在潮湿环境作业时，作业人员应站在___上，同时保证金属容器接地可靠。
【单选题】
进入受限空间作业，带有搅拌器等转动部件的设备，在停机后切断电源、摘除保险或挂接地线，在开关上挂“有人工作、严禁合闸”警示牌，必要时派___
【单选题】
进入受限空间从事喷漆等有可能挥发易燃易爆气体的作业，作业人员应穿戴防静电服装[服装上应有___]，使用防爆工具.
A. 合格生产厂家
B. 防静电标示
C. LA安全标示
【单选题】
发生人员中毒、窒息的紧急情况，抢救人员必须佩戴___防护面具进入受限空间。
【单选题】
当受限空间状况改变时，作业人员应立即___现场，并在入口处应设置警告牌，严禁入内，并采取措施防止误入。
【单选题】
汽车式起重机的支腿处必须坚实，在起吊重物前，应对支腿加强观察，有时会增铺道木，其目的是___。
A. 加大承压面积
B. 减小承压面积
C. 减小对地面的压力
D. 增大对地面的压力
【单选题】
二级起重作业是指被吊构件的质量在___的起重作业。
A. 60吨（含60吨）至100吨
B. 50吨（含50吨）至80吨
C. 40吨（含40吨）至100吨
D. 40吨（含40吨）至80吨
【单选题】
在起重作业中，___斜拉、斜吊和起吊地下埋设或凝结在地面上的重物。
A. 允许
B. 禁止
C. 无所谓
D. 看情况
【单选题】
吊装过程中出现故障应立即___向报告，没有指挥令，严禁擅自离开岗位。
A. 起重指挥
B. 起重作业监护人
C. 起重司机
【单选题】
吊物捆绑、吊挂不牢或不平衡易造成滑动，起重作业前应在钢丝绳、吊索、吊带与有棱角的吊物、锚固点之间___。
A. 增加牵引绳
B. 加衬垫
C. 使用专用卡具
【单选题】
盲板抽堵作业时，作业人员应在___作业，不得正对法兰缝隙
【单选题】
严禁___进行动火、进入受限空间、高处、吊装、临时用电、动土、检维修、盲板抽堵等作业
A. 无入厂证人员
B. 未经审批
C. 节假日
D. 恶劣天气
【单选题】
硫化氢发生源多而集中影响范围较大时，须在地面用___警戒线表示区域范围，此装置高处应设置风向标
【单选题】
进入受限空间作业一般伴随用火、高处作业、临时用电等相关作业一起产生，在做JSA分析时，应该___。
A. 挑风险度高的加以识别
B. 逐条识别并落实措施
C. 只识别进入受限空间的风险
【单选题】
高处作业是指：在坠落高度基准面___米以上（含），有坠落可能的位置进行的作业，包括上下攀援等空中移动过程
【单选题】
高处作业人员不得站在不牢固的结构物上进行作业，不得在高处做___的事项，不得在高处休息
A. 与工作有关
B. 与其他工作有关
C. 与工作无关
【单选题】
高处作业人员必须系挂___安全带，作业、移动、上下过程中必须保证至少一个钩有效
A. 双绳双大钩五点式
B. 双绳单大钩全身式
C. 双绳双大钩三点式
【单选题】
高处作业共分为四级，高度在___米为Ⅱ级高处作业，Ⅱ级（含Ⅱ级）以上高处作业必须办理《高处作业许可证》
A. 2米≤h≤5米
B. 5米＜h≤15米
C. 15米＜h≤30米
D. 30米以上
【单选题】
高处作业，安全带___，系挂点下方要有足够的净空（防止人都被撞上了绳子还没伸直）
【单选题】
动土开挖时，应防止邻近建（构）筑物.道路.管道等下沉和变形，必要时___措施，加强观测，防止位移和沉降；要由上至下逐层挖掘，严禁采用挖空底脚和挖洞的方法进行挖掘
推荐试题
【单选题】
Tom is a book lover. ______ likes reading very much.
A. He B. She C. You D. It
【单选题】
—May I listen to the music here, Mr. White?
—Sorry, you’d better it like that．
A. not to do B. not do to
C. dont do D. not do
【单选题】
3.—Did you have a good time at Lauras birthday party?
— Yes, indeed. Its several years ________ I enjoyed myself so much.
A. when B. before C. since D. that
【单选题】
4. —___________ is the Summer Palace from here?
About three kilometers away. You can take the No. 35 bus.
A. How long B. How far C. How often D. How much
【单选题】
5. I was looking for a birthday gift for my mother, but I couldnt find ______ suitable.
A. anything B. something C. nothing D. everything
【单选题】
6. A friend of my ____ and I are going to visit_______ next week．
A. father; Browns B. father's; Browns
C. father; the Browns D. father's; the Browns
【单选题】
7. She ______ very hard since she came to our school.
A. studies B. has studied C. is studying D. studied
【单选题】
8. — Who will send you to the new school, your mom or your dad?
— _______. Ill go there by myself.
A. Both B. Either C. Neither D. None
【单选题】
9.—Well do what we can ____English well this term．
—It’s high time for you to work hard．
A. study B．to study C. be studied D. be studying
【单选题】
10. —I’m going to Flower Bookstore. Could you tell me ______?
— Sorry, I don’t know. I’m new here.
A. where it is B. where was it C. where is it D. where it was
【单选题】
11. How do you like the dishes, Eric?
— Fantastic! Nothing tastes ________.
A. nice B. better C. terrible D. worse
【单选题】
12. ______ Lin Feng has to work late, she always wears a smile on her face.
A. Because B. If C. Until D. Though
【单选题】
13.You can save money _______ you buy cheaper things.
A. before B. unless C. if D. until
【单选题】
14. We will have a _________ holiday after the exam．
A. two-month B. two month’s C. two month D. two-months
【单选题】
15. —We will build an underground in Xuzhou before 2015．
— Wow, _______! Will it pass our place?
A. what an excited news B. how excited the news is
C. what exciting news D. how exciting
【单选题】
16. — Emily, here’s a dictionary．I hope it will help you in some way．
— Thank you．It’s ________ what I need．
A. almost B. still C. only D. just
【单选题】
17. —Oh．I’m hungry．Mum, can I have the hamburger on the plate?
—No．It tastes ．
A. terribly B. terrible C. good D. well
【单选题】
18. —We can invite our teachers to the farewell party next Saturday.
—Yes, ______? I’ll call them at once.
A. what for B. what C. why not D. why
【单选题】
19.You can ________ ask the old man to move away to any other place because he has lived ________ here for at least sixty years．
A. hardly; alone B. hard; alone
C. hardly; lonely D. hardly; lonely
【单选题】
20.—I’m going back to see my grandparents this weekend．
—________．
A. It’s very nice of you B. You’d better hurry
C. Say goodbye to them D. Give my best wishes to them
【单选题】
21.—Why not take ____ umbrella with the sign “Made in China”? It is useful.
—What _______ good advice it is!
A. an; a B. a; a C. an; \ D. \; a
【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
【单选题】
23. It was dark, ______ I couldnt see what was happening.
A. or B. though C. but D. so
【单选题】
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
【单选题】
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
【单选题】
( ) 26. Where does the writer of "The little Prince" come from?
A．England． B．France． C．America． D．China．
【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
【单选题】
( ) 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
【单选题】
( ) 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．
【单选题】
( ) 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．
【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．
【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
【单选题】
( ) 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.
【单选题】
( ) 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
【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.
【单选题】
( ) 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.
【单选题】
( ) 37.The greatest river for navigation is ___________.
A. the Nile B. the Amazon C. the Mekong D. the Mississippi
【单选题】
( ) 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
【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
【单选题】
( ) 40. The best title of the passage is ___________.
A. Rivers in Cities B. The importance of Rivers
C. Transportation D. Natural Resources
