吉大《工程力学(工)》在线作业二（Kyrgyzstan Engineering Mechanics (Engineering) online homework two）.docVIP

吉大《工程力学(工)》在线作业二（Kyrgyzstan Engineering Mechanics (Engineering) online homework two） Kyrgyzstan Engineering Mechanics (Engineering) online homework two Total score: 100 test time: - Radio examination Judgment question Radio examination questions (10 questions, 40 points) 1. according to the plane assumption of torsion of a circular axis, it is assumed that the cross section of a circular shaft is reversed. The shape of the A. is constant and the diameter is linear B. shape, size change, diameter is still straight C. shapes and sizes remain unchanged and diameters do not keep straight D. shapes and sizes remain unchanged and diameters do not keep straight Full marks: 4 2. only the movement of the object perpendicular to the direction of the supporting surface does not restrict the movement of the other direction of the object, called the () bearing. A. fixed hinge B. movable hinge C. fixed end D. smooth surface Full marks: 4 3. torsion stress formula applies to () bar member. A. arbitrary cross section shape B. arbitrary solid cross section shape C. circular section of arbitrary material Circular section of D. line elastic material Full marks: 4 4. about statically indeterminate structures, which of the following statements is true? () A. is a statically indeterminate structure with many constraints The B. continuous beam must be statically indeterminate The number of unknown quantities of C. is redundant, and the independent equilibrium equation is statically indeterminate The number of unknown quantities of D. is less, and the independent equilibrium equation is statically indeterminate Full marks: 4 5. the general method of calculating internal force is (). A. static analysis B. node method C. section method D. combines three aspects of geometry, physics and statics Full marks: 4 6. () is one of the basic characteristics of truss structures. A. has only axial force B. only the bending moment acts A rigid connection point between the C. members D. bars are not hing