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Statics Exam: Engineering Mechanics Problems

This document provides instructions and problems for a statics exam. It explains the format students should follow to show their work and solutions. There are 4 practice problems presented related to forces in rigid bodies, with points assigned for different levels of correct answers and solutions. Students must submit a single PDF file with their work by the given deadline and will be scored based on criteria shown for fully correct, partially correct, or incorrect responses.

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engr marcialaw
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144 views3 pages

Statics Exam: Engineering Mechanics Problems

This document provides instructions and problems for a statics exam. It explains the format students should follow to show their work and solutions. There are 4 practice problems presented related to forces in rigid bodies, with points assigned for different levels of correct answers and solutions. Students must submit a single PDF file with their work by the given deadline and will be scored based on criteria shown for fully correct, partially correct, or incorrect responses.

Uploaded by

engr marcialaw
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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College of Engineering Education

2nd Floor, BE Building


Matina Campus, Davao City
Telefax: (082)296-1084
Phone No.: (082)300-5456/300-0647 Local 131

CEE 117 - Statics of Rigid Bodies


Third Examination

Instruction: Solve the following problems related to the fundamental principles of engineering
mechanics. The approach in solving the problems must be expressed in the following parts:

a. Given: After reading the problem, write down all the data provided, if a figure is required,
neatly sketch the figure.
b. Solution: Solve the problem, show all the formulas and steps used in the analysis. Write
your solution as neatly as possible.
c. Answer: Write your final answer with the corresponding unit/s used. The final answer
must be connected with the solution.
d. Take a picture of your solution then compile it ONE PDF file and submit it on or before
the deadline.

Scoring points: Here is how you will be scored:

For 5-pt. problem:

Score Criteria
5 points Correct answer AND Correct Solution
4 points Correct answer AND Correct solution but
wrong units/ lacking units.
3 points Wrong answer BUT Correct solution
1 point to 2 points Wrong answer AND Wrong solution
0 No Answer AND/OR No solution

For 10-pt. problem:

Score Criteria
10 points Correct answer AND Correct Solution
8 points Correct answer AND Correct solution but
wrong units/ lacking units.
6 points Wrong answer BUT Correct solution
1 point to 2 points Wrong answer AND Wrong solution
0 No Answer AND/OR No solution

Page 1 of 3
College of Engineering Education
2nd Floor, BE Building
Matina Campus, Davao City
Telefax: (082)296-1084
Phone No.: (082)300-5456/300-0647 Local 131

Problem 1:

As an airplane’s brakes are applied, the nose wheel exerts two forces on the end of the landing
gear as shown.

a. Determine the horizontal and vertical components of reaction at the pin C, (Cx and
Cy). [5 pts. each]
b. Determine the force in strut AB. [5 pts.]

Problem 2:

The smooth disks D and E have a weight of 200 lb and 100 lb, respectively.

a. Determine the largest horizontal force P that can be applied to the center of disk E
without causing the disk D to move up the incline. [10 pts.]
b. Determine also the reactions (𝑁𝐴 , 𝑁𝐵 , 𝑎𝑛𝑑 𝑁𝐶 ) at the contact surfaces. Assume smooth
surfaces. [5 pts. each]

Page 2 of 3
College of Engineering Education
2nd Floor, BE Building
Matina Campus, Davao City
Telefax: (082)296-1084
Phone No.: (082)300-5456/300-0647 Local 131

Problem 3:

Determine the force in each member of the truss, (𝑃𝐶𝐵 , 𝑃𝐶𝐷 , 𝑃𝐷𝐸 , 𝑃𝐷𝐵 , 𝑃𝐵𝐸 , 𝑃𝐵𝐴 ). State if the
members are in tension or compression. Let P1 = 1.5 kN and P2 = 2 kN. [ 5 pts. each ]

Problem 4:

The bar ABC of negligible weight is supported by a pin at A and a rope that runs around the
small pulley at D and the 10-kg homogeneous disk.

a. Determine the tension in the rope. [ 10 pts. ]


b. Determine Ax and Ay. [ 10 pts. each ]

-----Nothing Follows-----

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