【判断题】
土坡放坡坡度要根据工程地质和土坡高度，结合当地同类土体的稳定坡度值确定。
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相关试题
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电缆接头的拆除与装配必须切断电源方可进行作业。
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安装钢筋模板组合体时，吊索应按模板设计的吊点位置绑扎。
【判断题】
在下层楼板上支模板时无需考虑楼板的承载能力。
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计算模板及支架结构或构件的强度、稳定性和连接的强度时，应采用荷载设计值。
【判断题】
荷载设计值为恒载的标准值乘以荷载分项系数。
【判断题】
计算模板承载能力极限状态，应采用荷载效应的基本组合。
【判断题】
模板及其支架应具有足够的承载能力、刚度和稳定性，应能可靠的承受新浇筑的混凝土的自重，侧压力和施工过程中所产生的荷载及风荷载。
【判断题】
模板的支架支承部分安装在基土上时，应加设垫板，垫板应有足够强度和支撑面积，且应中心承载，基土应坚实，并有排水措施。
【判断题】
地锚一般用钢丝绳、钢管、钢筋混凝土预制件、圆木等作埋件埋入地下做成。
【判断题】
重要的地锚在使用时，必须设专人检查绳卡是否牢固，地锚有无松动及被拉出的危险。
【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】
当拆除工程对周围相邻建筑安全可能产生危险时，必须采取相应保护措施，建筑内的人员不必撤离安置。
【判断题】
拆除管道及容器时，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】
在拆除工程作业中，发现不明物体，应停止施工，采取相应的应急措施，保护现场并应及时向有关部门报告。
【判断题】
拆除工程施工区应设置硬质围挡，围挡高度不应低于1.5m。
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挖掘机向运土车辆装车时，司机离开驾驶室后也不得将铲斗越过驾驶室装车。
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在行驶或作业中，除驾驶室外，装载机任何地方均严禁乘坐或站立人员。
【判断题】
混凝土输送泵敷设垂直向上的管道时，垂直管可以直接与泵的输出口连接。
【判断题】
搅拌机作业中，当料斗提升时，严禁任何人在料斗下停留或通过。
【判断题】
铲运机上、下坡道时，应低速行驶，不得中途换档，下坡时不得空档滑行。
【判断题】
当塔机吊重超过最大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】
动臂式和尚未附着的自升式塔机，塔身上不得悬挂标语牌。
【判断题】
风力在四级以上时，塔机不得进行顶升作业。
【判断题】
任何人发出的紧急停止信号，起重机司机都应该服从。
【判断题】
施工升降机运行到最上层或最下层时，可以采用限位装置作为停止运行的控制开关。
【判断题】
根据福建省《建筑施工塔式起重机、施工升降机报废规程》，公称起重力矩为63t•m~125t•m（不含125t•m）且最大起重量为6t～8t（不含8t）的小车变幅水平臂架式塔式起重机，使用年限不得超过12 年。
【判断题】
根据福建省《建筑施工塔式起重机、施工升降机报废规程》，SC型非变频式施工升降机整机使用年限不得超过5年。
【判断题】
施工升降机的防坠安全器壳体有裂纹或自出厂之日起满5 年的，该防坠安全器应及时报废。
【判断题】
连墙件在脚手架中的作用是：不论有风无风均受力，既承传水平风荷载，又承传因约束脚手架平面外变形所产生的水平力。
【判断题】
对脚手架立杆接长的规定是：除顶层顶步外，其余各层各步必须采用搭接连接。
【判断题】
扣件拧紧扭力矩应控制在以下范围：≧40N•m；≦65 N•m。
【判断题】
根据《建筑施工脚手架安全技术统一标准》，钢管壁厚允许偏差值为±10%。
【判断题】
根据《建筑施工脚手架安全技术统一标准》，作业脚手架的宽度不应小于1.2m。
【判断题】
在水平杆的强度计算中，不计算水平杆的抗剪强度是由于：水平杆抗剪承载力很大，不会发生剪切破坏。
【判断题】
扣件拧紧扭力矩不应小于40N•m，主要这是因为拧紧扭力矩过小：会使脚手架的整体刚度过低，降低脚手架的整体稳定性。
推荐试题
【单选题】
Q1: What is this passage mainly about?___
A. Superstitions and science .
B. Tips on how to have good luck .
C. Superstitions in the United States .
D. Rational and superstitious societies .
【单选题】
Q2: According to the passage, what is considered as bad luck?___
A. Walking under a ladder .
B. Dreaming of a black cat .
C. Hanging a mirror in the house .
D. Stepping on one's own shadow .
【单选题】
Q3: Why is it considered bad luck to see a black cat crossing one’s path?___
A. Because black cats look like witches . e witches .
B. Because black cats were thought to be witches .
C. Because black cats bring seven years of bad luck .
D. Because black cats are hard to notice in darkness .
【单选题】
Q4: According to the passage, what will bring people good luck?___
A. Breaking a mirror on purpose .
B. Catching a falling leaf on one's birthday .
C. Finding a on the ground and picking it up .
D. Dreaming of blowing out the candles in one blow .
【单选题】
Q1: How long will the woman spend on her way to and from work by high-speed train?___
A. 4 hours .
B. 2 hours .
C. 1.5 hours .
D. 45 minutes .
【单选题】
Q2: When does the woman arrive back home by subway?___
A. At 8 .
B. At 7 .
C. At 6 .
D. At 5 .
【单选题】
Q3: According to the woman, in what way will the new high-speed train be a big help to her?___
A. She can either read or rest a little on the train .
B. She can read and respond to emails onthe train .
C. She can travel to many different parts of the city .
D. She can go shopping on her way home from work .
【单选题】
Q4: How will the new high-speed train affect the man?___
A. He can take the train to the old part of the city .
B. He can save a lot of money when he takes the train .
C. He can save 20 minutes to go to work with the train .
D. He can take the train to the airport instead of driving .
【单选题】
Q1: How much time on average do Americans spend on their way to work?___
A. About an hour .
B. More than an hour .
C. About half an hour .
D. More than one and a half hours .
【单选题】
Q2: What is the present situation about Americans’ commuting to work?___
A. More and more Americans spend over an hour getting to work .
B. Over 10 percent of Americans spend less than an hour getting to work .
C. Only New York people spend more than 90 minutes getting to work .
D. Over 10 percent of Americans spend more than 90 minutes getting to work .
【单选题】
Q3: Why does Steven choose to have an extreme commute?___
A. Because gas prices are not high .
B. Because the commute is not tiring .
C. Because he can attend a better school .
D. Because he can have his favorite lifestyle .
【单选题】
Q4: Which of the following is the disadvantage of long commutes?___
A. Traffic jams .
B. Expensive housing .
C. Poorer life quality .
D. A tiring and boring trip .
【单选题】
Q1: What did Katy like about Jason’s last Halloween party?___
A. She liked playing an interesting game .
B. She enjoyed seeing many of her old friends .
C. She enjoyed wearing her Halloween costume .
D. She liked the decorations in Jason's front yard .
【单选题】
Q2: What is the actual reason that Katy doesn’t want to attend Jason’s party?___
A. None of her friends likes Jason .
B. None of Jason's guests is young .
C. She wants to go to Linda's party ..
D. She went to Jason's party last year .
【单选题】
Q3: What is special about Linda’s party?___
A. The party will last four hours .
B. Six people will attend the party .
C. They will have huge bags of candy .
D. They will play a new game called "GuessWho ".
【单选题】
Q4: What will Katy do to solve her problem?___
A. Go to Jason's party .
B. Go to Linda's party .
C. Attend both Jason's and Linda's parties .
D. Celebrate Halloween with her parents .
【单选题】
Q1: What is special about this year’s Black Friday shopping?___
A. Some stores offered bigger holiday discounts .
B. Some stores provided more choices of nightlife.
C. Some stores made efforts to attract young people .
D. Some stores opened much earlier than they used to .
【单选题】
Q2: Why did some stores open at midnight on Thanksgiving night?___
A. To attract young customers .
B. To beat other stores for sale.
C. To let people sleep late the next day .
D. To keep people stay up for the night .
【单选题】
Q3: How many Black Friday shoppers were reported to go to the shops at midnight this year?___
A. 24 percent .
B. 37 percent .
C. 9.5 percent .
D. 23.5 percent .
【单选题】
Q4: What can we learn about the 15-year-old Jenny?___
A. She and her cousins went back home at midnight .
B. She liked the traditional 4 a.m. Black Friday.
C. She preferred midnight shopping to early morning shopping .
D. She and her cousins got up very early to buy discounted items .
【单选题】
Q1: Why did the woman decide to do a triathlon?___
A. Because she did it in college .
B. Because she wanted to be tough .
C. Because her sister did it and liked it .
D. Because her sister said it was good for her .
【单选题】
Q2: When did the man first do a triathlon?___
A. Last year .
B. In college .
C. Last week .
D. In high school .
【单选题】
Q3: How does the man feel about running?___
A. Boring.
B. Scaring .
C. Exciting .
D. Interesting .
【单选题】
Q4: Why doesn’t the woman like swimming in the triathlon?___
A. Because she fears that a big fish might eat her .
B. Because she fears that she would get lost in lakes .
C. Because she doesn't want to scare away small fishes .
D. Because she doesn't like swimming with many people .
【单选题】
Q1: What is the ratio of positive to negative emotions that can make a person happier?___
A. 1:3.
B. 3 :1.
C. 1 :10 .
D. 10 :1.
【单选题】
Q2: What is the most exciting finding about increasing positive emotions?___
A. It improves relationships .
B. It leads to greater success .
C. It helps develop creativity .
D. It contributes to good health .
【单选题】
Q3: What does the speaker say about negative feelings?___
A. People should turn every negative feeling around .
B. Negative feelings can sometimes have positive effects .
C. Negative feelings often cause people to make mistakes .
D. People should never show negative feelings in public places .
【单选题】
Q4: What is the main idea of the passage?___
A. People should learn to manage their emotions .
B. People should be patient with their negative feelings .
C. People should learn to analyze causes of unhappiness .
D. People should identify as many positive feelings as possible .
【单选题】
Q1: What are the man and woman talking about?___
A. Whether nature is magical and kind .
B. Whether nature is powerful and full of risks .
C. Whether Christopher was well prepared for the trip .
D. Whether Christopher's trip to Alaska was worthwhile .
【单选题】
Q2: What can we learn about Christopher?___
A. He made a film about his trip to Alaska .
B. He wrote a story about his trip to Alaska .
C. He died while having an adventure in Alaska .
D. He learned how powerful and risky Alaska was .
【单选题】
Q3: What does the woman think about Christopher taking the trip to Alaska?___
A. He was too foolish .
B. He was really romantic .
C. He had a very kind heart .
D. He had a spirit for trying things .
【单选题】
Q4: Which of the following is NOT mentioned as something that would have saved Christopher’s life?___
A. A gun to hunt .
B. The map of the area .
C. Emergency food supplies .
D.
E. mergency communication equipment .
【单选题】
Q1: What speed can an avalanche reach within five seconds of taking off?___
A. At 8 miles an hour .
B. At 18 miles an hour .
C. At 80 miles an hour .
D. At 88 miles an hour .
【单选题】
Q2: According to the passage, under what circumstances may an avalanche occur?___
A. There are too many layers of snow on the .
B. There is a layer of snow covering an entire area .
C. The top layer of snow slides off the layer below it .
D. The layer of snow below the surface becomes unstable .
【单选题】
Q3: What are skiers advised to do to avoid being caught in an avalanche?___
A. Ski only in the official ski areas .
B. Look for solid snow to walk on .
C. Look out for each other while skiing .
D. Learn to control themselves in an avalanche .
【单选题】
Q4: Why does the ski patrol use explosives?___
A. To dig holes in the snow .
B. To close the area for skiing .
C. To make an avalanche move on purpose .
D. To' check how different layers are holding up .
【单选题】
Q1:What is conversation mainly about?___
A. The woman's happy college life the man's doubt .
B. The woman's spending habits and the man's concerns .
C. The man's reminding the woman of the exam this Thursday .
D. The man's support for the woman over the past 15 years .
【单选题】
Q2:What did the woman do last night?___
A. She bought a new leather coat .
B. She studied very hard for an exam .
C. She treated all her friends to dinner .
D. She went to a concert with her friends .
【单选题】
Q3:Where did the woman get the money?___
A. She just received her student loan .
B. She saved some money for herself .
C. She borrowed the money from her friends .
D. She asked her mom to send her the money .
【单选题】
Q4:What is the man?___
A. A teacher of biology .
B. An undergraduate student .
C. A freshman in biology class .
D. A graduate teaching assistant .
