A: Load
B: Material properties
C: Section size
D: Working conditions
举一反三
- The factors that affect the working stress of members are () A: Load B: Material properties C: Section size D: Working conditions
- The flexibility of the compression bar intensively reflects which factors of the compression bar will affect the critical stress. A: Length, constraints, section size and shape B: Material, length and constraints C: Material, constraints, section size and shape D: Material, length, section size and shape
- For fully prestressed concrete under the service load, in the section of concrete member A: Tensile stress is allowed to occur B: No tensile stress occurs C: Allow for cracks D: There is no compressive stress
- Which of the following statements is correct ? (1) There are two types of stress, normal stress(σ) and shear stress(τ). (2) On one section, the normal stress(σ) and the shear stress(τ) must be perpendicular to each other. (3) On one section, all the normal stress(σ) must be equal in size and same in the direction. (4) On one section, all the shear stress(τ) must be parallel.
- The factors that affect the management range of entrepreneurial activities are ( ) A: Work ability B: Work conditions C: Work content D: Work nature E: Work environment
内容
- 0
At the beginning of the section “A Balancing Act,” the author says, “Many factors affect prices, but supply and demand top the list.” Give some examples to show how supply and demand affect prices.
- 1
Which factors can affect mixing? A: The type and size of the mixing equipment B: Density C: Adhesion D: Surface charge of particles
- 2
The slender column is under axial compressive load P, the critical load [img=23x22]1803a0faa055141.png[/img] is independent of ( ). A: the material of the column B: the length of the column C: the magnitude of the P D: the shape and dimension of the cross section of the column
- 3
The section where the bending moment diagram has abrupt change is: () A: Section with concentrated load B: Section with zero shear force C: Section with zero load D: Section with concentrated couple
- 4
Physical properties are those properties which are in the material and cannot be permanently altered without changing the material itself.