GE 201-Soln-Final exam-1430-31-II Sem

King Saud University
College of Engineering
Department of Civil Engineering
FINAL EXAM
GE201 Statics – 2nd Semester 1430- 31H
Thursday, 5th Rajab 1431 H – 17th June 2010
Time allowed: 3 hrs
Student name (in Arabic)
Student number
Section / Instructor
Attempt all questions
Questions
Maximum Marks
Q≠1
10
Q≠2
10
Q≠3
10
Q≠4
10
Q≠5
10
Total marks
Marks obtained
_______
50
Total marks obtained (in words):_________________________________
Instructor’s Signature
King Saud University
College of Engineering, Department of Civil Engineering
GE201 Statics
Final Exam, 2nd Semester 1430 - 31 H
Student name
page 2/6
Marks obtained for Q 1
Student number
Question # 1 (10 points)
For the frame shown in
Figure 1:
Course
learning
Obj. #
3
4
%
0.2 m
0.3 m
(a) Draw the free body diagrams (FBD) for
(b) Find the reaction force at the roller
support F;
(c) Determine the horizontal and vertical
600
B
A
C
250 N
0.5 m
0.3 m
components of the forces at
E
D
F
each member;
pins B and D.
0.2 m
20
80
Figure 1
King Saud University
College of Engineering, Department of Civil Engineering
Student name
GE201 Statics
Final Exam, 2nd Semester 1430 - 31 H
Marks obtained for Q 2
Student number
Question # 2 (10 points)
Locate the centroid
shown in Figure 2.
and
Course
learning
Obj. #
5
%
100
of the shaded area,
Figure 2
page 3/6
King Saud University
College of Engineering, Department of Civil Engineering
GE201 Statics
Final Exam, 2nd Semester 1430 - 31 H
Student name
Marks obtained for Q 3
Student number
Question # 3 (10 points)
Course
learning
Obj. #
5
%
100
For the Z-section, shown in Figure 3:
Determine the moments of inertia about its
centriodal x0- and y0-axes.
Figure 3
page 4/6
King Saud University
College of Engineering, Department of Civil Engineering
GE201 Statics
Final Exam, 2nd Semester 1430 - 31 H
Student name
page 5/6
Marks obtained for Q 4
Student number
Question # 4 (10 points)
In the loaded beam shown
in Figure 4:
Course
learning
Obj. #
6
6 kN
100
(a) Calculate the support reactions at A and B.
(b) Determine the shear force and bending
moment values at the point C.
Assume the supports at A and B as pin and roller
respectively.
Solution: (a) and (b)
4 kN/m
%
C
B
A
1m
1m
2 m
3 m
Figure 4
2 m
King Saud University
College of Engineering, Department of Civil Engineering
Student name
GE201 Statics
Final Exam, 2nd Semester 1430 - 31 H
Marks obtained for Q 5
Student number
Question #5 (10 points)
From Figure 5:
Course
learning
Obj. #
7
%
100
Determine the magnitude of force P needed to start
moving the 100 kg block.
Take coefficient of static friction µs = 0.3
Figure 5
page 6/6