工程流体力学章节测试课后答案2024春

第六章测试

1.Dimensional analysis is the when the results of an equation will be what in relation to the system of units chosen. （ ）。
A:Dependent B:Independent C:None D:Constant
答案:B
2.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. （ ）。
A:fewer than B:none C:equal to D:greater than 3.The required number of pi terms is what compared to the number of original variables? （ ）。
A:greater than B:fewer than C:none D:equal to 4.When using the repeating variables method, the number of repeating variables that are selected should be what compared to the number of reference dimensions? （ ）。
A:fewer than B:none C:equal to D:greater than