2026知到答案 CFD technology in FluidMachinery（兰州理工大学） 最新智慧树满分章节测试答案

第二章 单元测试

1、判断题：
Shear stress at a point is the limiting valueof shear force to area as the area is reducedto the point.（ ）
选项：
A:错
B:对
答案: 【对】

2、判断题：
For gasdynamics, we have toconsider the mechanics of the flow simultaneously with the thermal dynamics of thegas.（ ）
选项：
A:错
B:对
答案: 【对】

3、判断题：
A fixed amount of a gas, by itselfin a container, will always expanduntil its volume equals that of thecontainer.（ ）
选项：
A:错
B:对
答案: 【对】

4、判断题：
The degree of mixing is a function of thecharacteristies of the wastewater and theambient liquid (such as density) as well asthe discharge velocity of the wastewater.（ ）
选项：
A:对
B:错
答案: 【对】

5、判断题：
A machine in which energy from the fluid is converted directlyto the mechanical energy of a rotating member is known as aturbine (from the Latin turbo, a circular motion).（ ）
选项：
A:对
B:错
答案: 【对】