【单选题】
凡是受高温.摩擦.___或是受到一定物质的激发能瞬间发生分解或复分解化学反应，并以机械功的形式在极短时间内放出较大能量的物质，统称为爆炸品。
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相关试题
【单选题】
爆炸物品的特征主要有敏感度和___。
A. 稳定性
B. 安定性
C. 毒害性
D. 易燃性
【单选题】
常见压缩气体的特点主要有易燃易爆性.扩散性.可缩性和膨胀性.窒息性以及___。
A. 腐蚀毒害性
B. 流淌性
C. 酸性
D. 碱性
【单选题】
爆炸品按其组成，可分为爆炸性化合物和爆炸性___两大类。
A. 混合物
B. 有机物
C. 无机物
D. 中和物
【单选题】
危险品是指有爆炸.易燃.毒害.___.放射性等性质，在生产.运输.储存.使用和处理过程中，易造成人员伤亡和财产损毁而需要特别防护的物品。
【单选题】
正压式空气呼吸器气瓶的最高工作压力是___MPA。
【单选题】
高倍数泡沫的发泡倍数不低于___倍。
A. 100
B. 150
C. 200
D. 50
【单选题】
容积为6升，最高工作压力为30MPA的正压式空气呼吸器理论上最大使用时间是___分钟。
【单选题】
下列不属于消防人员基本防护装备的是___。
A. 消防头盔
B. 灭火防护服
C. 封闭式防化服
D. 空气呼吸器
【单选题】
消防员可穿着___进入火焰区进行灭火救援。
A. 灭火防护服
B. 封闭式防化服
C. 避火服D.防火防化服
【单选题】
___属于输水器材。
A. 水炮
B. 水带
C. 水枪
D. 泡沫管枪
【单选题】
往返式缓降器下降速度___。
A. 随人体重量定
B. 由他人控制
C. 由使用人控制
D. 自动控制
【单选题】
___可用密封50～480mm直径管道以及圆形容器裂缝。
A. 内封式堵漏袋
B. 捆绑式堵漏带
C. 外封式堵漏袋
D. 木制堵漏楔
【单选题】
当PQ8空气泡沫枪的工作压力为___MpA时，其射程为28米。
A. 0.4
B. 2.5
C. 1.6
D. 0.7
【单选题】
通常情况下，当正压式空气呼吸器压力低于___MpA时报警。
【单选题】
空气泡沫钩管可用于扑救___火灾。
A. 地下建筑
B. 油品储罐
C. 高层建筑
D. 气体储罐
【单选题】
防化手套主要用于___的手部防护。
A. 高电压场合
B. 有割伤场合
C. 化学灾害事故现场
D. 高温场合
【单选题】
热像仪主要用于___。
A. 寻找被困人员
B. 水质分析
C. 检测气象
D. 可燃气体检测
【单选题】
救生气垫每次使用间隔时间应为___秒，不准2人同时使用。
A. 1
B. 1～2
C. 2～3
D. 3～5
【单选题】
空气泡沫枪一般主要用于扑救___。
A. 易燃.可燃液体火灾
B. 可燃气体火灾
C. 可燃金属火灾
D. 固体可燃物火灾
【单选题】
___是输送.喷射液体灭火剂（或冷却水）的动力装置。
A. 引水装置
B. 喷射装置
C. 灭火剂储罐
D. 消防泵
【单选题】
___用于对眼睛.呼吸道及表皮有直接腐蚀性危害的重度化学灾害现场。
A. 防火防化服
B. 内置式重型防化服
C. 防化防核服
D. 简易防化服
【单选题】
消防避火服适用于___防护。
A. 放射性污染
B. 高温有火焰灼伤危险场所
C. 军事毒剂
D. 化学事故现场
【单选题】
消防避火服防火温度一般为___℃。
A. 800
B. 1800
C. 2000
D. 500
【单选题】
在狭小空间长时间作业，无法使用个人携带式空气呼吸器时，应使用___。
A. 移动式供气源
B. 氧气呼吸器
C. 强式送风器
D. 过滤式防毒面具
【单选题】
___用于在黑暗.浓烟条件下观察火源及火势蔓延方向，寻找被困人员。
A. 有毒气体探测仪
B. 生命探测仪
C. 热像仪
D. 蛇眼可视仪
【单选题】
___用于堵塞管道.容器.油罐（槽）车.储罐等直径480mm以上的裂缝。
A. 外封式堵漏袋
B. 内封式堵漏袋
C. 金属堵漏套管
D. 泄漏密封枪
【单选题】
___用于产生大流量.远射程.高强度射流，以扑救大规模.大面积火灾。
A. 直流水枪
B. 空气泡沫枪
C. 水（泡沫）炮
D. 多用水枪
【单选题】
楼层外部垂直铺设水带时可使用___加以固定。
A. 水带挂钩
B. 水带护桥
C. 水带包布
D. 水带护套
【单选题】
消防直流水枪的工作压力范围为___MPA。
A. 2～7
B. 0.7～1.2
C. 0.2～0.7
D. 5～7
【单选题】
___水枪水流量大.射程远，适合扑救大面积火灾。
A. 直流水枪
B. 喷雾水枪
C. 多用水枪
D. 带架水枪
【单选题】
机动排烟机以___为动力。
A. 内燃机
B. 蒸汽
C. 风力
D. 高压水
【单选题】
高压水带耐压为___MPA。
A. 0.8
B. 1.0
C. 1.6
D. 4.0
【单选题】
通过道路铺设水带时应垫上___。
A. 水带挂钩
B. 水带护桥
C. 水带包布
D. 毛毯
【单选题】
高层建筑火灾灭火力量部署的先后顺序是___。
A. 先着火层.再着火上层.后着火下层
B. 先着火上层.再着火层.后着火下层
C. 先着火下层.再着火上层.后着火层
D. 先着火层.再着火下层.后着火上层
【单选题】
地铁隧道中的机械通风分___。
A. 特风和普风
B. 低风和弱风
C. 中风和微风
D. 强风和软风
【单选题】
在扑救高层建筑火灾中，疏散和救助遇险和遇难人员的基本顺序是___。
A. 先着火层.再着火上层.后着火下层
B. 先着火上层.再着火层.后着火下层
C. 先着火下层.再着火上层.后着火层
D. 先着火层.再着火下层.后着火上层
【单选题】
实施对高层建筑火灾扑救时，灭火进攻起点一般选择在___。
A. 着火层
B. 着火层下一层或下二层
C. 首层
D. 着火层上一层
【单选题】
扑救高层建筑火灾，前沿指挥所应设在___。
A. 着火层
B. 着火层下一层或下二层
C. 首层
D. 着火层上一层或上二层
【单选题】
扑救高层建筑火灾的战术要求是___。
A. 以固为主，固移结合
B. 内攻近战
C. 救人第一
D. 上堵下防
【单选题】
扑救有毒区域的火灾，对中毒较重.已经休克的人员，要先送到___进行急救，然后迅速送往医院抢救。
A. 空气新鲜.通风良好的地方
B. 火场指挥部
C. 安全区
D. 救护车
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A. which
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Sunday is the day ____ people usually don't go to work.
A. when
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____ you know, David has been well lately.
A. Which
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C. What
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The harder you study, _____ you will learn.
A. much
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C. the more
D. much more
【单选题】
They got there an hour _____ than the others.
A. early
B. much early
C. more early
D. earlier
【单选题】
The grey building is the place where the workers live, and the white building is the place where the spare parts ____ .
A. are producing
B. are produced
C. produced
D. being produced
【单选题】
Once environmental damage ______, it takes many years for the system to recover.
A. is to do
B. does
C. had done
D. is done
【单选题】
We worked hard and completed the task ___.
A. in the time
B. on the time
C. ahead of time
D. before time
【单选题】
I didn't expect you to turn _____ at the meeting yesterday.
A. up
B. to
C. out
D. over
【单选题】
I like the teacher _______ classes are very interesting and creative.
A. which
B. who
C. whose
D. what
【单选题】
When Lily came home at 5 p. m. yesterday, her mother ______ dinner in the kitchen.
A. cooked
B. was cooking
C. cooks
D. has cooked
【单选题】
I don’t know the park, but it's _____ to be quite beautiful.
A. said
B. told
C. spoken
D. talked
【单选题】
Mike is better than Peter ____. swimming.
【单选题】
The young lady coming over to us ______ our English teacher; the way she walks tells us that!
A. must be
B. can be
C. would be
D. could be
【单选题】
Eggs, though rich in nourishments, have ______ of fat.
A. a large number
B. the large number
C. a large amount
D. the large amount
【单选题】
Neither John ______his father was able to wake up early enough to catch the morning train.
A. nor
B. or
C. but
D. and
【单选题】
Jane's dress is similar in design ______ her sister's.
A. like
B. with
C. to
D. as
【单选题】
His salary as a driver is much higher than ________.
A. a porter
B. is a porter
C. as a porter
D. that of a porter
【单选题】
_____ these honours he received a sum of money.
A. Except
B. But
C. Besides
D. Outside
【单选题】
Would you let ____ to the park with my classmate, Mum?
A. me go
B. me going
C. I go
D. I going
【单选题】
I have been looking forward to_____ from my parents.
A. hear
B. being heard
C. be heard
D. hearing
【单选题】
The manager will not _____ us to use his car.
A. have
B. let
C. agree
D. allow
【单选题】
_____ her and then try to copy what she does.
A. Mind
B. See
C. Stare at
D. Watch
【单选题】
Will you ___ me a favor, please?
A. do
B. make
C. bring
D. give
【单选题】
It's bad _____ for you to smoke in the public places where smoking is not allowed.
A. behavior
B. action
C. manner
D. movement
【单选题】
The computer system ____ suddenly while he was searching for information on the Internet.
A. broke down
B. broke out
C. broke up
D. broke in
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If she wants to keep slim, she must make a ___ in her diet
A. change
B. turn
C. run
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【单选题】
______ the War of Independence, the United States was an English colony.
A.
B. efore B. At
C. In
D. Between
【单选题】
A police officer claimed he had attempted to ____ paying his fare.
A. avoid
B. reject
C. refuse
D. neglect
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While I was in the university, I learned taking photos, ______ is very useful now for me.
A. it
B. which
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He is not seriously ill, but only a ____ headache.
A. obvious
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