图示A、B、C三条高程不同的坝身泄水管,其管长l、管径d及沿程阻力系数λ均相同,这三条管道的流量均相同。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/a57d10fe10214cc19c95b6c238c9ca97.png
举一反三
- 两水池间用A、B、C三条并联管道连接,它们的长度相同,直径分别是d,2d,3d;假定各管的沿程阻力系数相同,三管的通过流量关系为。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/69ab95a445304581b4dd005ac4795a64.png
- 如图,两简单管道:a图为自由出流,b图为淹没出流,若两管道的作用水头H,管长l、管径d及沿程阻力系数λ均相同,则两管中通过的流量相同。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/147dfa4c5286494ba558f9d5188337a6.png
- 如图示并联管路,已知各支路的沿程阻力系数之比为<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/6e209020d20f4543823ce6516ae8ca06.png" />,管长之比为<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/50814fe028094040bc955d8e1542b6d2.png" />,且<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/40b4c6a9565b483590c5c7d607e7ed66.png" />,则两支管的流量之比<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/1055534bfce6426a94682ba086a5b17e.png" />=()。<img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/77815369f5cd41f3a2e68b9524b454c5.png" /> A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/0cd231eebe45465f941a0f614743e6d2.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/7555afa5223e40bf89ca575cf7b52754.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/1b06cd474b844644a6d97ad87d208e94.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/d0b2bca045414236a7d1c9925a9264f2.png" />
- 如图示并联管路,已知各支路的沿程阻力系数之比为,管长之比为,且,则两支管的流量之比=()。https://image.zhihuishu.com/zhs/onlineexam/ueditor/201909/6e209020d20f4543823ce6516ae8ca06.png
- 图示刚架的弯矩图中正确的是()。 A: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/96bab3bc877f45e6bc366a1ed24b02e3.png" /> B: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/233d0c9147694598ab60919b0ee7a246.png" /> C: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/f8e911921bb447bdb2e8216ff1bca5cf.png" /> D: <img src="https://image.zhihuishu.com/zhs/onlineexam/ueditor/201910/5c0b8a15b9174de3b636c8ea8a2eb281.png" />