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Sample Final Exam Solutions - Statics | ESM 2104, Exams of Statics

Virginia Polytechnic Institute and State University (Virginia Tech)Statics
Prof. John C. Duke

Material Type: Exam; Professor: Duke; Class: Statics; Subject: Engineering Science and Mechanics; University: Virginia Polytechnic Institute And State University; Term: Fall 2011;

Typology: Exams

2010/2011

Uploaded on 12/11/2011

thatcuteguy229
thatcuteguy229 🇺🇸

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Name______________________ ESM 2104 Sample
Final Exam
Closed book, but you may use one 8½”x 11" formula sheet (both sides).
There are 20 questions, equally weighted.
1. Fill in your name on this exam sheet.
2. Fill in your name and ID number on the orange opscan form
3. On the upper right-hand corner of the this test is a Form Letter. Fill in your Form letter on
your opscan
Sign the following pledge:
I have neither given nor received unauthorized aid on this exam.
___________________________
1. The magnitude of the resultant of the two forces shown is most nearly
1. 2.00 kN
2. 2.39 kN
3. 3.36 kN
4. 6.00 kN
5. 6.20 kN
6. 6.46 kN
7. 10.39 kN
8. 10.58 kN
9. 14.00 kN
10. 17.44 kN
2. The 350-lb force is to be broken into two components, one
along the line a and the other along the line b. The
component along line a is most nearly
1. 90.6 lb
2. 104.6 lb
3. 123.9 lb
4. 156.7 lb
5. 247 lb
6. 286 lb
7. 330 lb
8. 338 lb
9. 303 lb
10. 350 lb
pf3
pf4
pf5

Partial preview of the text

Download Sample Final Exam Solutions - Statics | ESM 2104 and more Exams Statics in PDF only on Docsity!

Name______________________ ESM 2104 Sample

Final Exam

Closed book, but you may use one 8½”x 11" formula sheet (both sides). There are 20 questions, equally weighted.

  1. Fill in your name on this exam sheet.
  2. Fill in your name and ID number on the orange opscan form
  3. On the upper right-hand corner of the this test is a Form Letter. Fill in your Form letter on your opscan

Sign the following pledge: I have neither given nor received unauthorized aid on this exam.

___________________________

  1. The magnitude of the resultant of the two forces shown is most nearly
    1. 2.00 kN
    2. 2.39 kN
    3. 3.36 kN
    4. 6.00 kN
    5. 6.20 kN
    6. 6.46 kN
    7. 10.39 kN
    8. 10.58 kN
    9. 14.00 kN
    10. 17.44 kN
  2. The 350-lb force is to be broken into two components, one along the line a and the other along the line b. The component along line a is most nearly
    1. 90.6 lb
    2. 104.6 lb
    3. 123.9 lb
    4. 156.7 lb
    5. 247 lb
    6. 286 lb
    7. 330 lb
    8. 338 lb
    9. 303 lb
    10. 350 lb
  1. The plate is made up of 1-ft squares. The moment of the 60-lb force about point B is most nearly

The tension T in cable AB has a magnitude of 124 kN. The moment of the force T about point D (10 m above O on the z -

axis)can be written as

  1. is most nearly
    1. 344 kN m
    2. -344 kN m
    3. 432 kN m
    4. -432 kN m
    5. 480 kN m
    6. -480 kN m
    7. 1080 kN m
    8. -1080 kN m
    9. 1760 kN m
    10. -1760 kN m
  2. is most nearly
    1. 344 kN m
    2. -344 kN m
    3. 432 kN m
    4. -432 kN m
    5. 480 kN m
    6. -480 kN m
    7. 1080 kN m
    8. -1080 kN m
    9. 1760 kN m
    10. -1760 kN m
  1. The force in BD is most nearly

1. 450 N [T]

2. 450 N [C]

3. 637 N [T]

4. 637 N [C]

5. 779 N [T]

6. 779 N [C]

7. 900 N [T]

8. 900 N [C]

9. 1559 N [T]

10. 1559 N [C]

  1. The force in DE is most nearly
    1. 450 N [T]
    2. 450 N [C]
    3. 637 N [T]
    4. 637 N [C]
    5. 779 N [T]
    6. 779 N [C]
    7. 900 N [T]
    8. 900 N [C]
    9. 1559 N [T]
    10. 1559 N [C]
  2. ABC is one rigid body. There are pin connections at A , B , and D. The magnitude of the force in the pin at A is most nearly
    1. 200 N
    2. 300 N
    3. 400 N
    4. 450 N
    5. 523 N
    6. 578 N
    7. 667 N
    8. 693 N
    9. 731 N
    10. 833 N
  1. To prevent vibration, the center of mass of the paint stirrer must lie on the vertical axis of rotation. In order to accomplish this the length b must be most nearly
    1. 1.100 in.
    2. 2.58 in.
    3. 2.79 in.
    4. 3.00 in.
    5. 3.45 in.
    6. 4.10 in.
    7. 4.58 in.
    8. 5.25 in.
    9. 6.00 in.
    10. 6.41 in.
  2. The moment of inertia about the y axis is most nearly
    1. 11.25 in.^4
    2. 15.00 in.^4
    3. 19.82 in.^4
    4. 21.5 in.^4
    5. 32.9 in.^4
    6. 41.6 in.^4
    7. 52.6 in.^4
    8. 57.9 in.^4
    9. 62.8 in.^4
    10. 72.7 in.^4
  3. The moments of inertia of the area A about the parallel axes p and p ’ differ by 120 in.. The area of^4 A , which has its centroid at C is most nearly
    1. 120 in.^2
    2. 90 in.^2
    3. 72 in.^2
    4. 60 in.^2
    5. 40 in.^2
    6. 30 in.^2
    7. 24 in.^2
    8. 20 in.^2
    9. 13.33 in.^2
    10. 10.00 in.^2
  1. The 160-lb tree surgeon lowers himself with the rope over a horizontal limb of the tree. If the coefficient of friction between the rope and the limb is 0.70, then the force which the man must exert on the rope to let himself down slowly is most nearly.
    1. 80.0 lb
    2. 62.7 lb
    3. 58.9 lb
    4. 53.3 lb
    5. 45.2 lb
    6. 40.0 lb
    7. 25.6 lb
    8. 17.74 lb
    9. 15.97 lb
    10. 13.25 lb
  2. The force in GH is most nearly
    1. 40.0 kN [T]
    2. 40.0 kN [C]
    3. 56.6 kN [T]
    4. 56.6 kN [C]
    5. 80.0 kN [T]
    6. 80.0 kN [C]
    7. 84.9 kN [T]
    8. 84.9 kN [C]
    9. 100.0 kN [T]
    10. 100.0 kN [C]
  3. The force in KL is most nearly
    1. 40.0 kN [T]
    2. 40.0 kN [C]
    3. 56.6 kN [T]
    4. 56.6 kN [C]
    5. 80.0 kN [T]
    6. 80.0 kN [C]
    7. 84.9 kN [T]
    8. 84.9 kN [C]
    9. 100.0 kN [T]
    10. 100.0 kN [C]