问题 问答题

(二)

某机电安装施工单位承建一地下动力中心安装工程,建筑物为现浇钢筋混凝土结构,并已施工完成。预埋的照明电线管和其他预埋工作经检查无遗漏。

地下建筑物的平面及剖面简图如下图所示。

设备布置和设计要求是:

(1)-2.600层Ⅰ区安装冷却塔及其水池。(2)-6.800层I区安装燃油供热锅炉、Ⅱ区北侧安装换热器,南侧安装各类水泵。(3)-11.800层Ⅰ区为变配电所、Ⅱ区北侧安装离心冷水机组,南侧安装柴油发电机组。(4)动力中心设有通风排气和照明系统,在-11.800层地面下有集水坑。各层吊装孔在设备吊装结束后加盖,达到楼面强度,并做防渗漏措施。(5)每种设备均有多台,设备布置紧凑,周界通道有限。

安装开工时,工程设备均已到达现场仓库。所有工程设备均需用站位于吊装孔边临时道路的汽车吊(40t),吊运至设备所在平面层,经水平拖运才能就位。

根据建筑物设备布置和要求应怎样合理安排设备就位的顺序理由是什么用任意一层(-2.600层除外)为例作设备就位流程图。

答案

参考答案:

根据建筑物设备布置和要求应这样合理安排设备就位的顺序:

①先安装-11.800层的设备、后安装-6.800层的设备;每层先安装远离吊装孔的设备;最终安装靠近吊装孔的设备;-2.600层冷却塔安装可做作业平衡调剂用。

理由是使-6.800层吊装孔早日封闭,以利该层设备方便水平拖运,先远后近可避免发生因通道狭窄而使后装设备无法逾越现象。

②-6.800层的流程:换热器一供热锅炉一各类水泵;或-11.800层的流程:离心冷水机组→变配电设备→柴油发电机组。

判断题
单项选择题

I was a single parent of four small children, working at a low paid job. Money was always tight, but we had a (1) over our heads, food on the table, clothes on our backs, and if not a lot, always (2) . Not knowing we were poor, my kids just thought I was (3) . I’ve always been glad about that.

It was Christmas time, and although there wasn’t (4) for a lot of gifts, we planned to celebrate with a family party. But the big (5) for the kids was the fun of Christmas (6) .

They planned weeks ahead of time, asking (7) what they wanted for Christmas. Fortunately, I had saved MYM120 for (8) to share by all five of us.

The big (9) arrived. I gave each kid a twenty-dollar bill and (10) them to look for gifts of about four dollars each. Then everyone scattered. We had two hours to shop; then we would (11) back at the "Santa’s Workshop".

Driving home, everyone was in high Christmas spirits, (12) my younger daughter, Ginger, who was unusually (13) . She had only one small, flat bag with a few candies—fiftycent candies! I was so angry, but I didn’t say anything (14) we got home. I called her into my bedroom and closed the door, (15) to be angry again. This is what she told me.

"I was looking (16) thinking of what to buy, and I (17) to read the little cards on the ’Giving Trees’. One was for a little girl, four years old, and all she (18) for Christmas was a doll. So I took the card off the tree and (19) the doll for her. We have so much and she doesn’t have anything. "

I never felt so (20) as I did that day.

9()

A.day 

B.chance 

C.cheque 

D.tree