第六章单元测试
- Dimensional analysis is the when the results of an equation will be what in relation to the system of units chosen. （ ）。
- The dimensions of the variable on the left side of the equation must be ____ the dimensions of any term that stands by itself on the right side of the equal sign. （ ）。
- The required number of pi terms is what compared to the number of original variables? （ ）。
- When using the repeating variables method, the number of repeating variables that are selected should be what compared to the number of reference dimensions? （ ）。
- Write the Reynolds number equation.
A:None
B:Dependent
C:Constant
D:Independent
答案:Independent
A:fewer than
B:greater than
C:equal to
D:none
A:fewer than
B:equal to
C:greater than
D:none
A:greater than
B:none
C:fewer than
D:equal to
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