第二章测试
1.According to the characteristics of similarity phenomenon, similarity can be divided into physical similarity and mathematical similarity.( )
A:错 B:对
答案:B
2.The model is an artificially shaped entity in the laboratory for studying the mechanical properties of the prototype, which is an approximation of the prototype.( )
A:对 B:错
答案:A
3.Physical phenomena and laws are related to the units of measurement chosen.( )
A:错 B:对
答案:A
4.The first theorem of similarity and the second theorem of similarity are the properties after similarity, which are sufficient conditions for similarity of phenomena.( )
A:对 B:错
答案:B
5.When using ( ) to guide model research, the first important thing is to derive the similarity criterion.
A:Single valued condition B:The first theorem of similarity C:The third theorem of similarity D:The second theorem of similarity
答案:B
6.Which of the following does not belong to the category of geometric similarity ( ).
A:Length B:volume C:bulk density D:area
答案:C
7.Which of the following does not belong to the basic dimension unit of a quality system ( ).
A:[T] B:[L] C:[M] D:[F]
答案:D
8.The similarity criterion can be regarded as ( ).
A:1 B:constant C:invariant D:variable
答案:C
9.Which of the following is the fundamental dimension unit of a force system( ).
A:[L] B:[F] C:[M] D:[T]
答案:ABD
10.The following belonging to the category of single-valued conditions are ( ).
A:medium conditions B:initial conditions C:boundary conditions D:Geometric conditions
答案:ABCD

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