问题 问答题 案例分析题

背景

某工地-10m×6.5m的焊接车间内,一端作为材料存放场地,氧气瓶、乙炔瓶、二氧化碳气瓶整齐顺墙根摆放一起;另一端两名工人正在进行电焊作业,另一名工人在门口吸烟。由于天气炎热,三人只穿了衬衫作业。

由于电焊机故障,焊机整体带电,正在施焊的两名工人触电,而开关箱中装设的漏电保护器失灵,吸烟的工人迅速打开总配电箱,发现未设置初级漏电保护器。于是切断总开关,导致整个工地停电。触电工人经抢救脱离危险,二人均造成重伤。经查,此三人中只有抽烟的工人有“特种作业操作证”。

气瓶的安全控制要点有哪些?

答案

参考答案:

气瓶的安全控制要点主要如下:

1)施工现场使用的气瓶应按标准色标涂色;

2)施工现场应设置气瓶集中存放处,不同种类气瓶存放应有隔离措施,存放环境应符合安全要求,不能存放在住宿区和靠近油料、火源的地方。存放处应有安全警示标志,配备相应的灭火器材;

3)气瓶的防振胶圈、防护帽等装置应齐全有效;

4)氧气瓶、乙炔瓶在使用过程中瓶与瓶之间的距离应保持在5m以上,气瓶与明火的距离应保持在10m以上,当不能满足安全距离要求时,应有隔离防护措施;

5)乙炔瓶不应平放。

填空题

     阅读下面短文,根据上下文意义和所给单词首字母,写出标有题号的每小题空白处适当单词的

完全、正确形式。

     When I was l3 years old, a boy gave me an important gift.

      It was a (1)s______. It was the early autumn of my first year at a junior high school, and my old school

was far away. As a result, no one (2)k______ who I was. I was very lonely, and afraid to make friends with

(3)a______.

     Every time I heard the other students talking and (4)l______, I felt my heart break. I couldn't talk to anyone

about my problem, and I didn't want my parents to (5)w______ about me.

     Then one day, my classmates talked happily with their friends, but I sat at my desk unhappily as (6)u______.

At that moment, a boy (7)e______ the classroom. I didn't know who he was. He (8)p______ me and then

turned back. He looked at me and, without a (9)w______, smiled.

     Suddenly, I felt the touch of something bright and friendly. It (10)m______ me feel happy, lively and warm.

     That smile (11)c______ my life. I started to talk with the other students and made friends.

     Day by day, I became more active and (12)c______ to everyone in my class. The boy with the lucky

smile has become my best friend now.

     One day, I asked him (13)w______ he smiled, but he couldn't remember smiling at me!

     It doesn't matter even if he didn't tell me the reason. because all the dark days have gone. Now I believe

that the world is (14)w______ you think it is. If you think you are lonely, you might always be (15)a______.

So smile at the world and it will smile back.

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