A: The deflection is zero, the angle of rotation is not zero
B: The deflection is not zero, the angle of rotation is zero
C: Deflection and angle of rotation are both not zero
D: Both deflection and angle of rotation are both zero
举一反三
- The rotation angle of the cross section at the maximum deflection of the beam must be equal to zero. ( )
- The rotation angle of the cross section at the maximum deflection of the beam must be equal to zero. ( ) A: 正确 B: 错误
- If the section figure has a symmetry axis, then for the figure ( ) to its symmetry axis. A: Both the static moment of inertia and the moment of inertia are not zero; B: Both the static moment of inertia and the moment of inertia are zero; C: The static moment of inertia is not zero, the moment of inertia is zero; D: The static moment of inertia is zero, the moment of inertia is not zero.
- In the following cantilever beam, the ( ) of the cross-section C and B is different.[img=540x190]1803a365910cafa.png[/img] A: Slope angle θ； B: Shear force Fs; C: Deflection y; D: Bending moment M.
- In the following cantilever beam, the ( ) of the cross-section C and B is different.[img=617x199]1803a0fa75c83b4.jpg[/img] A: bending moment M B: shear force V C: deflection v D: slope angle [img=9x19]1803a0fa7e46ed5.png[/img]
内容
- 0
The delayed value of rotation angle of the output shaft when the rotation of input shaft turns from positive to negative is . A:
- 1
Rule 5. Determine the angle of departure (angle of arrival) of the root locus from a complex pole (at a complex zero) need to modify for positive feedback system as we can see here.[img=291x143]17869cad4bc6f6e.png[/img] A: 对 B: 错
- 2
If the temperature is subzero, the temperature is . A: above zero B: below zero C: at zero D: high
- 3
The tool tip of the external turning tool is installed higher than the workpiece rotation axis, the working rake Angle of turning tool is （ ）than that of marked rake angle A: lager B: smaller C: equal to D: unidentified
- 4
How to say “6.072”in English? A: six point seven two B: six zero seven two C: six and zero seven two D: six point zero seven two