相关试题
【单选题】
空气呼吸器使用前气瓶压力不能低于___MpA。
【单选题】
AHG-2型氧气呼吸器有效使用时间为___。
A. 30分钟
B. 1小时
C. 2小时
D. 6小时
【单选题】
电绝缘手套最高测试电压为___伏。
A. 500
B. 5000
C. 10000
D. 20000
【单选题】
室内消火栓箱处启动按钮的主要作用是___。
A. 控制消防水泵的启.停
B. 间接启动消防水泵
C. 直接启动消防水泵，同时将信号反馈到消防控制中心
D. 火灾报警
【单选题】
高倍数泡沫灭火系统当利用火场热烟气发泡时，必须采用___。
A. 淡水型高倍数沫液
B. 耐海水型高倍数泡沫液
C. 耐温耐烟型高倍数泡沫液
D. 中倍数泡沫液
【单选题】
气体灭火系统机械应急操作装置应设在___。
A. 防护区内
B. 无管网灭火系统中
C. 贮瓶间内或防护区外便于操作的地方
D. 泄压口
【单选题】
消防控制室可以设置在建筑的___。
A. 首层或地下一层
B. 地上各层
C. 三层以下
D. 地下各层
【单选题】
同一建筑物内应采用统一规格的消火栓.水枪和水带。每根水带的长度不应超过___m。
【单选题】
干式喷水灭火系统的适用范围是：环境温度低于4摄氏度或高于___℃的建（构）筑物。
【单选题】
平时无人工作的气体灭火防护区，其延迟喷射的时间要求可___喷射。
A. 延迟10s
B. 延迟30s
C. 延迟60s
D. 无延迟
【单选题】
配制泡沫混合液的水温宜为___。
A. 5~38℃
B. 10~20℃
C. 15~30℃
D. 3~36℃
【单选题】
在有害气体扩散环境中，氧气含量低于___%时不能使用多用途滤毒罐。
【单选题】
根据毒害品的化学组成，可以分为（）毒害品和___毒害品两大类。
A. 剧毒，轻毒
B. 感染，无感染
C. 可燃，不燃
D. 无机，有机
【单选题】
避火服的防火温度是___度。
A. 788
B. 833
C. 966
D. 1111
【单选题】
单杠梯的工作高度为___。
A. 2.80m
B. 3.00m
C. 3.10m
D. 3.15m
【单选题】
木制单杠梯的重量为___，竹制单杠梯的重量为（）。
A. 12kg7.5kg
B. 13kg8.5kg
C. 12kg8.5kg
D. 13kg7.5kg
【单选题】
当水枪射流与地面成___度的上倾角时，射程最远。
A. 二十八至三十三
B. 二十九至三十四
C. 三十至三十五
D. 三十一至三十六
【单选题】
下列战斗员卧射姿势描述不正确的是___。
A. 右脚后退一步并下蹲，双手前伸支撑上体。
B. 双脚向后叉开伸直，脚尖向外，脚跟相对于肩同宽。
C. 右臂肘部着地握水枪前部，左手小臂着地扶水带，目视前方喊“好”。
D. 右手将水枪按在地上。
【单选题】
救援中，不适应于搬运失去自主活动能力的轻伤人员的方法___。
A. 背式救人
B. 抱式救人
C. 抬式救人
D. 肩负式救人
【单选题】
破拆工具大体分为手动破拆工具.动力破拆工具和___。
A. 化学破拆工具
B. 液压破拆工具
C. 电动破拆工具
D. 高压破拆工具
【单选题】
当建筑物内可燃物数量较多（火灾荷载密度＞50kg/m2）时，使用Ф19mm水枪（有效射程为15m）灭火，每支水枪的控制面积可按___m2估算。
【单选题】
扑救油罐火灾邻近罐的冷却强度是___L／s．m2。
A. 0.1～0.15
B. 0.15～0.2
C. 0.2～0.3
D. 0.35～0.7
【单选题】
排除和输送温度超过80℃的空气或其它气体以及易燃碎屑的管道，与可燃或难燃物体之间应保持不小于___mm的间隙。
A. 150
B. 200
C. 250
D. 400
【单选题】
设置在四层的歌舞娱乐游艺放映场所内建筑面积小于等于___㎡的房间，可设置一个疏散门。
【单选题】
卤钨灯和超过100W的白炽灯泡的吸顶灯.槽灯.嵌入式灯的引入线不应采用___作隔热保护。
A. 瓷管
B. 石棉
C. 玻璃丝
D. 阻燃的PVC
【单选题】
旧建筑物原安装的配电设备从未检修更新，家电增多，用电量增大，超负载使用，容易发生电线过载发热，引起___。
A. 火灾
B. 触电
C. 电线损坏
D. 烧毁家电
【单选题】
消防工作贯彻___的方针。
A. 以防为主，以消为辅
B. 以消为主，以防为辅
C. 预防为主，防消结合
D. 消灭为主，防消结合
【单选题】
燃烧的必要条件主要包括可燃物.___.温度。
【单选题】
在火场上燃烧物质所放出的热能，通常是以传导.___.辐射等方式传播。
【单选题】
公共娱乐场所一般与甲.乙类生产厂房.库房之间应留有不少于___米的防火间距。
【单选题】
商场的安全出口疏散宽度不应小于___米。
A. 1.4
B. 1.5
C. 1.6
D. 1.8
【单选题】
宾馆.饭店内的装饰灯具，如果装饰件是由可燃材料制成的，其灯泡功率不得超过___W。
【单选题】
宾馆.饭店内的疏散用应急照明灯，其地面最低照度不应低于（）lx，且连续供电时间不应少于___min
A. 0.620
B. 0.530
C. 0.630
D. 0.520
【单选题】
电路一般是由电源.___.连接导线和控制设备四个部分组成。
A. 用电设备
B. 电流
C. 负载
D. 开关
【单选题】
电阻的连接方式主要有串联.___.混连。
【单选题】
常用电工仪表按用途分可分为电压表.电流表.___等。
A. 伏特表
B. 压力表
C. 功率表
D. 万用表
推荐试题
【填空题】
49.利用潮水涨落产生的水位差所具有的势能来发电的方法是___。
【填空题】
50.___基础是指桩，墩，沉井，沉箱和地下连续墙等基础。
【填空题】
51.按桩的施工方法，桩分为___和___两类。
【填空题】
52.即可用作深基坑的支护结构，又可作为深基坑的支护和建筑物地下室外墙的是___。
【填空题】
53.砌筑用脚手架是砌筑过程中堆放材料和工人进行操作的___。
【填空题】
54.混凝土浇筑包括___和___两个过程。
【填空题】
55.无粘结预应力混凝土结构在张拉后容许预应力筋对周围混凝土发生___滑动。
【填空题】
56.斜拉桥是新型的桥梁形式，这种形式大桥的主桥分为___和___两大部分。
【填空题】
57.___和___是国际通行的工程建设项目组织实施方式。
【填空题】
58.BIM 中的图形是赋予了___属性的实体。
【填空题】
59.BIM 是指建筑物在设计和建造过程中，创建和使用的“___”。
【单选题】
The word "wag" (Line 1, Para.1) most probably means _________.
A. move
B. shake
C. bite
D. play
【单选题】
The video cameras were used to catch the dogs' responses because ___________.
A. the dogs were put in the wooden boxes
and tested one at a time
B. it was easier to catch the dogs’s response changes in the tail wagging
C. they enabled the dogs’owners to know
about their dogs’; habit
D. the dogs wagged their tails in different
directions when they were in different
moods
【单选题】
When there are no stimuli, a dog will ___________.___
A. wag to the right
B. no wag at all
C. wag to the left
D. wag to the left and then wag to the right
【单选题】
The purpose of doing the experiment is _________.___
A. to train dogs for their owners
B. to help dogs find companion
C. to help people choose their pet dogs
D. to help people judge the mood of dogs
【单选题】
The underlined word "they" in the last sentence refers to __________.___
A. the trainers
B. the systems
C. the researchers
D. the dogs
【单选题】
The new law passed in Rome will ________.___
A. help improve fishing environment
B. stop people from catching goldfish
C. guarantee better conditions for goldfish
D. discourage keeping goldfish at home
【单选题】
People in Rome believe that the civilization of a city can be judged by _________.___
A. awareness of animal protection
B. exchanges with other cities
C. protection of ancient ruins
D. recognition of animal lovers
【单选题】
The underlined word "compassion" in Para 2 is the closest in meaning to __________.___
A. support
B. pity
C. help
D. love
【单选题】
People may break the law in Turin if they ________.___
A. keep their dogs or cats in cars
B. shut their dogs home all day long
C. raise their cats near ancient ruins
D. feed homeless animals in car parks
【单选题】
We can infer from the passage that _________.___
A. the owners can leave their dogs in hot cars
B. the cat only lives in modern life
C. the new law can prevent cruelty to animals
D. the new law gives recognition to the
people who feed homeless cat
【单选题】
If a person finds getting up early a problem, most probably ________.___
A. he is a lazy person
B. he refuses to follow his own energy cycle
C. he is not sure when his energy is low
D. he is at his peak in the afternoon or evening
【单选题】
Which of the following may lead to family quarrels according to the passage?___
A. Unawareness of energy cycles.
B. Familiar monologues.
C. A change in a family member's energy cycle.
D. Attempts to control the energy cycle of other family members.
【单选题】
If one wants to work efficiently at his low point in the morning, he should __________.___
A. change his energy cycle
B. overcome his laziness
C. get up earlier than usual
D. go to bed earlier
【单选题】
You are advised to rise with a yawn and stretch because it will __________.___
A. help to keep your energy for the day's work
B. help you to control your temper early in the day
C. enable you to concentrate on your routine work
D. keep your energy cycle under control all day
【单选题】
Which of the following statements is NOT true?___
A. Getting off to work with a minimum effort helps save one's energy.
B. Dr. Kletman explains why people reach their peaks at different hours of day.
C. Habit helps a person adapt to his own energy cycle.
D. Children have energy cycles, too.
【单选题】
An effective way to prevent the burnout of young athletes is __________.___
A. to increase their sense of success
B. to make sports less competitive
C. to reduce their mental stress
D. to make sports more challenging
【单选题】
According to the passage sport is positive for young people in that __________.___
A. it can help them learn more about society
B. it enables them to find flaws in themselves
C. it teaches them how to set realistic goals for themselves
D. it can provide them with valuable experiences
【单选题】
Many coaches and parents are in the habit of criticizing young athletes __________.___
A. without realizing criticism may destroy their self-confidence
B. in order to make them remember life's lessons
C. believing that criticism is beneficial for their early development
D. so as to put more pressure on them
【单选题】
According to the passage parents and coaches should __________.___
A. help children to win every game
B. pay more attention to letting children enjoy sports
C. train children to cope with stress
D. enable children to understand the positive aspect of sports
【单选题】
The author's purpose in writing the passage is _________.___
A. to persuade young children not to worry about criticism
B. to stress the importance of positive reinforcement to children
C. to discuss the skill of combining criticism with encouragement
D. to teach young athletes how to avoid burnout
【单选题】
As pointed out at the beginning of the passage, people used to think that air pollution _______.___
A. cause widespread damage in the countryside
B. affected the entire eastern half of the United States
C. had damaged effect on health
D. existed merely in urban and industries areas
【单选题】
As to the greenhouse effect, the author ________.___
A. share the same view with the scientist
B. is uncertain of its occurrence
C. rejects it as being ungrounded
D. thinks that it will destroy the world soon
【单选题】
The underlined word "offset" in the second paragraph could be replaced by _________.___
A. slip into
B. make up for
C. set up
D. catch up with
【单选题】
It can be concluded that ____________.___
A. raising the world's temperature only a few degrees would not do much harm to life on earth
B. lowering the world's temperature merely a few degrees would lead major farming areas to disaster
C. almost no temperature variations have occurred over the past decade
D. the world's temperature will remain constant in the years to come
【单选题】
This passage is primarily about __________.___
A. the greenhouse effect
B. the burning of fossil fuels
C. the potential effect of air pollution
D. the likelihood of a new ice age
【单选题】
What is the major function of paragraph 1?___
A. To arouse the reader's concern.
B. To introduce the theme of the whole passage.
C. To summarize the whole passage.
D. To state the primary uses of TV.
【单选题】
Television, as a source of entertainment, is ________.___
A. not very convenient
B. very expensive
C. quite dangerous
D. relatively cheap
【单选题】
Why are some people against TV?___
A. Because TV programs are not interesting.
B. Because TV viewers are totally passive.
C. Because TV prices are very high.
D. Because TV has both advantages and disadvantages.
【单选题】
One of the most obvious advantages of TV is that _________.___
A. it keeps us informed
B. it is very cheap
C. it enables us to have a rest
D. it controls our lives
