Mechanics of Materials(Dalian University of Technology)mooc慕课答案2026年版满分测试WYC

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起止时间:2021-03-01到2021-07-01
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Lecture 4 Examination_1_ Chapter 1& Chapter 2

1、

A:24kN
B:-24kN
C:40kN
D:-40kN
答案: 24kN

2、

A:3kN
B:2kN
C:4kN
D:5kN
答案: 3kN

3、

A:5kN
B:4kN
C:6kN
D:2kN
答案: 5kN

4、

A:kL/
B:2kL/
C:kL/2
D:kL/3
答案: kL/

5、

A:37.7 kN
B:27.7 kN
C:47.7 kN
D:57.7 kN
答案: 37.7 kN

6、

A:FN=-800N, Vx=-300N, Vz=771N, Mx=2.11kNm, Ty=-600Nm, Mz=600Nm
B:FN=800N, Vx=300N, Vz=771N, Mx=2.11kNm, Ty=600Nm, Mz=600Nm
C:FN=-800N, Vx=-600N, Vz=771N, Mx=5.11kNm, Ty=-600Nm, Mz=600Nm
D:FN=-800N, Vx=-300N, Vz=871N, Mx=2.11kNm, Ty=-800Nm, Mz=600Nm
答案: FN=-800N, Vx=-300N, Vz=771N, Mx=2.11kNm, Ty=-600Nm, Mz=600Nm

7、

A:16 kN/m
B:18 kN/m
C:20 kN/m
D:14 kN/m
答案: 16 kN/m

8、

A:FN=10N, V=17.3N, M=1.60Nm
B:FN=10N, V=7.3N, M=1.60Nm
C:FN=10N, V=17.3N, M=3.60Nm
D:FN=20N, V=17.3N, M=1.60Nm
答案: FN=10N, V=17.3N, M=1.60Nm

9、

A:
B:
C:
D:
答案:

10、

A:25.5MPa， 4.72MPa
B:35.5MPa， 4.72MPa
C:25.5MPa， 6.72MPa
D:35.5MPa， 6.72MPa
答案: 25.5MPa， 4.72MPa

11、

A:FN=150N, FS=200N, M=10Nm
B:FN=200N, FS=150N, M=10Nm
C:FN=150N, FS=200N, M=20Nm
D:FN=200N, FS=200N, M=20Nm
答案: FN=150N, FS=200N, M=10Nm

12、

A:FN=20kN, FS=0, M=40kNm
B:FN=40kN, FS=0, M=40kNm
C:FN=20kN, FS=10, M=40kNm
D:FN=20kN, FS=0, M=20kNm
答案: FN=20kN, FS=0, M=40kNm

13、

A:FN=0, FS=1kN, M=22kNm
B:FN=0, FS=10kN, M=22kNm
C:FN=0, FS=1kN, M=32kNm
D:FN=1, FS=1kN, M=22kNm
答案: FN=0, FS=1kN, M=22kNm

14、

A:shear stress: 106MPa, bearing stress:141MPa
B:shear stress: 116MPa, bearing stress:141MPa
C:shear stress: 106MPa, bearing stress:151MPa
D:shear stress: 116MPa, bearing stress:151MPa
答案: shear stress: 106MPa, bearing stress:141MPa

15、

A:137.2kN
B:127.2kN
C:117.2kN
D:147.2kN
答案: 137.2kN

16、

A:D=d
B:D=2d
C:D=3d
D:D=4d
答案: D=d

17、

A:d=26.36mm, t=15.75mm.
B:d=16.36mm, t=10.75mm.
C:d=16.36mm, t=15.75mm.
D:d=26.36mm, t=10.75mm.
答案: d=26.36mm, t=15.75mm.

18、

A:shear stress: 45.86MPa, bearing stress:180MPa
B:shear stress: 55.86MPa, bearing stress:180MPa
C:shear stress: 45.86MPa, bearing stress:190MPa
D:shear stress: 55.86MPa, bearing stress:190MPa
答案: shear stress: 45.86MPa, bearing stress:180MPa

19、

A:shear and bearing stresses : 100.09 MPa and 235.70 MPa
B:shear and bearing stresses : 110.09 MPa and 235.70 MPa
C:shear and bearing stresses : 100.09 MPa and 255.70 MPa
D:shear and bearing stresses : 110.09 MPa and 255.70 MPa
答案: shear and bearing stresses : 100.09 MPa and 235.70 MPa

20、

A:19mm
B:20mm
C:18mm
D:21mm
答案: 19mm

Lecture 7 Examination_2_Chapter 4

1、

A:0.262 in.
B:0.524 in.
C:0.131 in.
D:1.048 in.
答案: 0.262 in.

2、

A:3.6 kN
B:7.2 kN
C:14.4 kN
D:28.8 kN
答案: 14.4 kN

3、

A:0.0367 in.
B:0.0733 in.