问题 问答题

背景资料: 

某分洪闸位于河道提防上,该闸最大分洪流量为300m3/s,河道提放级别为2级。 

该闸在施工过程中发生如下事件: 

事件1:闸室底板及墩墙设计采用C25W4F100混凝土。施工单位在混凝土拌合过程中掺入高效减水剂,并按照混凝土试验有关标准制作了混凝土试块,对混凝土各项指标进行试验。 

事件2:为有效控制风险,依据《大中型水电工程建设风险管理规范》(GBT50927-2013),施工单范围对施工过程中可能存在的主要风险进行了分析,把风险分为四大类:第一类为损失大、概率大的风险,第二类为损失小、概率大的风险,第三类为损失大、概率小的风险,第四类为损失小、概率小的风险,针对各类风险提出了风险规避等处置方法。 

事件3:在启闭机工作桥夜间施工过程中,2名施工人员不慎从作业高度为12.0m的高出坠落。事故造成了1人死亡,1人重伤。

按事件2的风险分类,事件3中发生的事故应属于风险类型中的哪一类。对于此类风险,事前宜采用何种处置方法进行控制?

答案

参考答案:

该事故属于损失大,概率小的风险。事前应采用以下方法进行控制:提高各类设施的可靠性以消除或减少故障、增加安全系数、设置安全监控系统、改善作业环境等。最重要的是加强员工的安全意识培训和教育,克服不良的操作习惯,严格按章办事,并在生产过程保持良好的生理和心里状态。

阅读理解

阅读理解。

     Earthquake safety tips On April 14, 2010, a big earthquake hit Yushu, Qinghai. Over, 2,000 people died.

Many people were hurt. Why are there earthquakes?

     The surface of the Earth has many pieces. These pieces are always moving. When two pieces move

past each other, there is an earthquake.

     Scientist are working hard to find out more about earthquakes. They try to predict (预测) them, but it's

very hard.

     Do you know how to get ready for an earthquake? Do you know what to do during an earthquake? Here

are some things you should know.

     What to do before an earthquake

     Make sure you have two bottles of water, a packet of biscuits (饼干), a clean towel (毛巾), a few

band-aids (创口贴), a radio and a flashlight (电筒) at home.

     What to do during an earthquake If you are inside:

    ★ Stay where you are. Quickly move under a strong desk, or along a wall. This will protect you from

falling things.

    ★ Don't stand near windows.

    ★ Turn off the lights.

    ★ Don't get into a lift during an earthquake. If your are in a lift, get out as quickly as possible.

If you are outside:

    ★ Don't stand near buildings. Things may fall on you.

    ★ Lie on the ground until the shaking stops.

1. An earthquake hit Yushu ________.

A. on April 12, 2010

B. on April 14, 2010

C. on May 14, 2010

D. on May 12, 2010

2. You need ________ at home before an earthquake.

A. some water and biscuits

B. a clean towel and a few band-aids

C. a radio and a flashlight

D. all of the things above

3. You must protect yourself in an earthquake by ________.

A. keeping you from falling things

B. turning on the lights

C. standing near the window

D. getting into a lift

4. The reason why an earthquake happens is that ________.

A. the surface of the earth is thin

B. the pieces of the surface are moving slowly

C. two pieces of the surface move past each other

D. there are too many people on the earth

5. Which is TRUE according to the passage when you are outside in an earthquake?

A. You can play under a big tree.

B. You can't stand near the buildings.

C. You can lie on the ground until the shaking stops.

D. Both B and C.

问答题 简答题