1. Revision

2. Question 1
1- When a particle is in equilibrium, the sum of forces acting on it equals to:
(a) A constant
(b) A positive number
(c) Zero
(d) A negative number
(e) none of the above
2- Using right side direction as a positive, for the link below, the sum of forces in the x- direction ( FX) is:
(a) 600 cos 30o – 400 sin 50o
(b) 600 cos 30o – 400 cos 50o
(c) 600 sin 30o – 400 cos 50o
(d) 600 sin 30o – 400 cos 50o

3. 3- For the cantliever beam shown below, the moment at the fixed end A is equal to:
(a) 3315 kN.m
(b) 108 kN.m
(c) 4126 kN.m
(d) 33 kN.m
(e) none of the above
4- For determining the centroid of the area shown below, what are the coordinates (x,y) of the centroid of rectangle ABCD with respect to x and y - axis?
(a) (115, 15) mm
(b) (100, 15) mm
(c) (115, 185) mm
(d) (50, 100) mm

4. Question 1 5- The SI units for the moment of Inertia for an area is :
(a) m3
(b) m4
(c) kg.m2
(d) kg.m3
(e) none of the above
6- If a block is stationary (no movements) and the coefficient of static friction is s , then the friction force acting on it is:
(a)  s*N
(b) = s*N
(c)  s*N
(d) = k*N

5. Question 2
A simply supported beam (AB) of span 12 m is subjected to the uniformly distributed load of 10 kN/m alomg 6 m span and non-uniformly distributed load of 12 kN/m along 6 m span as shown in Fig. Q1-B below. Determine the reactions at the supports A and B.

6. Question 3
For the cross sectional beam shown in Fig. Q2-a, calculate the location of the centroid with respect to x and y axes.

7. Question 4
For the truss shown in Fig. Q2-b, determine the internal force in members BC, CF,FE and ED using section method of analysis. Indicate whether the members are in tension or in compression.

8. Question 5
A frame is subjected to five concentrated loads as shown in Fig. Q3-a. Determine the reactions at supports A and B.

9. Question 6
Replace the loading system acting on the frame shown in Fig.Q4-a by an equivalent resultant force and couple moment at point C.

10. Question 7
A 200Kg block placed on a inclined plane as shown in Fig. Q5-a. The coefficients of friction between the block and the plane are μs = 0.5 Determine the state of the block if the applied force (p) is 1150 N.