大学职业搜题刷题APP
下载APP
首页
课程
题库模板
Word题库模板
Excel题库模板
PDF题库模板
医考护考模板
答案在末尾模板
答案分章节末尾模板
题库创建教程
创建题库
登录
logo - 刷刷题
创建自己的小题库
搜索
【单选题】

If you think you have a puncture (漏气), first check the valve (阀门) to make sure air is not leaking from it, by putting spit on the end of it. If the valve is not the source of the leak, remove the wheel from the bicycle and take the tyre off. Be careful not to pinch(挤、扎) the inner tube. Remove the inner tube and pump some air into it. Then hold it in a bowl of water until you see bubbles (气泡) coming from it. Or, hold the tube to your ear and listen for air escaping. Dry the tube. Choose a patch that is big enough to cover the hole and the surrounding area. Apply glue to the tube before sticking patch down. Before you put the tube back in the tyre, run your fingers over both the inside and outside of the tyre to make sure that whatever caused the puncture is not still there. To replace the tube, put the valve part way through the hole in the rim (轮圈), pump a little air in, and then feed it carefully under the tyre. Push the tyre over the rim and back into position. Do not use tyre levers for doing this. Pump up the tyre fully and replace the wheel on the bicycle. Make sure the wheel is positioned in the centre of the frame.From the context we may see that a lever is a tool which can be used to()

A.push the tyre back into position
B.take out the inner tube
C.remove the wheel from the bike
D.replace the wheel on the bike

A.
If you think you have a puncture (漏气), first check the valve (阀门) to make sure air is not leaking from it, by putting spit on the end of it. If the valve is not the source of the leak, remove the wheel from the bicycle and take the tyre off. Be careful not to pinch(挤、扎) the inner tube. Remove the inner tube and pump some air into it. Then hold it in a bowl of water until you see bubbles (气泡) coming from it. Or, hold the tube to your ear and listen for air escaping. Dry the tube. Choose a patch that is big enough to cover the hole and the surrounding area. Apply glue to the tube before sticking patch down. Before you put the tube back in the tyre, run your fingers over both the inside and outside of the tyre to make sure that whatever caused the puncture is not still there. To replace the tube, put the valve part way through the hole in the rim (轮圈), pump a little air in, and then feed it carefully under the tyre. Push the tyre over the rim and back into position. Do not use tyre levers for doing this. Pump up the tyre fully and replace the wheel on the bicycle. Make sure the wheel is positioned in the centre of the frame.
手机使用
分享
复制链接
新浪微博
分享QQ
微信扫一扫
微信内点击右上角“…”即可分享
反馈
收藏 - 刷刷题收藏
举报
参考答案:
举一反三

【单选题】下列中阀门的型号表示正确的是()。

A.
止回阀(A)
B.
截止阀(H)
C.
蝶阀(S)
D.
闸阀(Z)

【多选题】管道工程中常用的阀门有()。

A.
闸阀
B.
截止阀
C.
止回阀
D.
旋塞阀
E.
增压阀

【单选题】如 果 从 加 油 口 处 能 听 到 漏 气 声 说 明 ( ) 。

A.
进气门密封不严
B.
排气门密封不严
C.
油道泄露
D.
气缸和活塞环密封不严

【单选题】机械通气漏气的解决办法,错误的是( )

A.
重新调整头带,在保证密合的前提下尽可能的放松
B.
放置鼻饲管
C.
更换不同型号的面罩
D.
使用前清洁面部,使用中性皂液和温水,去过多的面部油脂
E.
查看面罩的硅胶垫和框架有无破损,对破部件及时更换

【单选题】气缸盖安装后试车时发现密封圈处漏气,原因分析中不正确的是:

A.
密封平面不洁夹有异物
B.
缸盖螺母上紧不足或上紧不均
C.
最高爆发压力过高
D.
气缸盖发生了变形

【多选题】聚乙烯阀门的基本要求包括()。

A.
阀体须使用PE80或PE100混配料制造
B.
密封件应均匀一致且内部无裂纹、不纯物或杂质
C.
阀体的颜色必须为红色或蓝色以示区别
D.
阀门的外观用肉眼观察内外表面应洁净,不得有缩孔或凹坑
相关题目:
【单选题】下列中阀门的型号表示正确的是()。
A.
止回阀(A)
B.
截止阀(H)
C.
蝶阀(S)
D.
闸阀(Z)
【多选题】管道工程中常用的阀门有()。
A.
闸阀
B.
截止阀
C.
止回阀
D.
旋塞阀
E.
增压阀
【单选题】Z代表阀门中的()。
A.
截止阀
B.
球阀
C.
闸阀
D.
减压阀
【单选题】如 果 从 加 油 口 处 能 听 到 漏 气 声 说 明 ( ) 。
A.
进气门密封不严
B.
排气门密封不严
C.
油道泄露
D.
气缸和活塞环密封不严
【单选题】机械通气漏气的解决办法,错误的是( )
A.
重新调整头带,在保证密合的前提下尽可能的放松
B.
放置鼻饲管
C.
更换不同型号的面罩
D.
使用前清洁面部,使用中性皂液和温水,去过多的面部油脂
E.
查看面罩的硅胶垫和框架有无破损,对破部件及时更换
【单选题】气缸盖安装后试车时发现密封圈处漏气,原因分析中不正确的是:
A.
密封平面不洁夹有异物
B.
缸盖螺母上紧不足或上紧不均
C.
最高爆发压力过高
D.
气缸盖发生了变形
【多选题】聚乙烯阀门的基本要求包括()。
A.
阀体须使用PE80或PE100混配料制造
B.
密封件应均匀一致且内部无裂纹、不纯物或杂质
C.
阀体的颜色必须为红色或蓝色以示区别
D.
阀门的外观用肉眼观察内外表面应洁净,不得有缩孔或凹坑
刷刷题-刷题-导入试题 - 刷刷题
参考解析:
AI解析
重新生成
题目纠错 0
发布
刷刷题-刷题-导入试题 - 刷刷题刷刷题-刷题-导入试题 - 刷刷题刷刷题-刷题-导入试题 - 刷刷题
刷刷题-刷题-导入试题 - 刷刷题
刷刷题-刷题-导入试题 - 刷刷题
刷刷题-单词鸭