14.9 In Figure 14.13a, let H = 6 m, y = 16.5 kN/m², o' = 30°, 8' = 20°, c' = 0, a = 10°, and ẞ = 80°. Determine the Coulomb's active force per meter length of the wall and the location and direction of the resultant force.

From the figure shown below, the surface tension for a water-glass interface is 0.078N/m, d=15mm 7. Calculate the capillary rise in the tube in mm. d a. 6.3455 mm b. 4.7299 mm c. 2.1203 mm d. 5.3154 mm 8. Determine the total force due tO surface tension in N. h a. 2.90x10-4 N b. 3.68x10-3N c. 1.85x10 4N d. 4.18x103 N

Q2/ A cylindrical barrier holds water, as shown in Fig.1, the contact between cylinder and the wall is smooth. Consider a Im length of cylinder, determine the weight of the cylinder and the force exerted against the wall, take y, = 9790 N/m³. Fig. 1 TIL ... r-2m

Given is the 200mm X 400 mm rectangular beam below. 9 kN 7.50 kN/m 400 mm 1.50 kNm A 1.50m 7.50m C 200 mm R1 R2 Figure 1 What is the value of stress at the neutral axis in MPa?

a) A brass bar, having cross-section area of 900mm2, is subjected to axial forces as shown in figure 4.1 in which AB =0.6m, BC = 0.8m and CD = 1.0m. 40 kN 70 KN 20 kN 10 KN Figure 4.1 Find the total elongation of the bar. Take E = 1 x 10$ N/mm² %3D

O. No 7: The cross section of the beam has a uniform wall thickness. Analyze using concepts of shear stress, shear flow and shear centre in thin walled open section beams to determine the location of the shear center relative to point B. 6 in. 6 in. 3 in. 01 in. 3 in NA 3in. Figure Q. No. 7

The simply supported beam AB as shown in Figure Q3(a) has a uniform load of intensity, w=15 kN/m acts throughout the entire length of the beam. The cross-section of the beam is shown in Figure Q3(b). Given the second moment of area, INA = 36 x 106 mm“. (a) Determine the shear stress at the top of the hole at section a-a. (b) Determine the maximum shear stress at point M and N based on the maximum shear force. (c) Calculate the absolute maximum shear stress of the beam. 0.6 m 1.8 m a. w = 15 kN/m В Figure Q3 (a) 160 Ø30 hole 110 NA * 70 M y = 80 40 N 100 All dimensions in mm

D. The radius of the tube as shown in the figure is 1mm. The surface tension of water at 200C is equal to 0.0728 N/m. For a water-glass interface 0 = 0o. 1. Compute the capillary rise in the tube in mm. 2. Compute the total force due to surface tension 3. Compute the weight of water above the surface due to surface tension.

Situation 1. A closed cylindrical tank 500mm in diameter and made of 2mm thick plate is subjected to an internal pressure, p=1MPa and an axial tensile force, F-25kN. 1. Determine the longitudinal and tangential stresses (MPa) produced in the wall of the tank, respectively. A. 70.46, 125 B. 132.95, 62.5 2. On a plane making an angle of 25° with the longitudinal axis of the tank, calculate the normal stress. A. 113.84 B. 120.37 C. 62.5, 125 D. 125, 70.46 A. 23.94 B. 20.89 C. 115.26 D. 80.20 3. On a plane making an angle of 25° with the longitudinal axis of the tank, calculate the shear stress. C. 26.99 D. 17.53

A hollow tube ABCDE constructed of monelmetal is subjected to five torques acting in the directionsshown in the figure. The magnitudes of thetorques are T1 = 1000 lb-in., T2 =T4 = 500 lb-in., andT3 =T5 = 800 lb-in. The tube has an outside diameterof d2 =1.0 in. The allowable shear stress is 12,000 psiand the allowable rate of twist is 2.0°/ft.Determine the maximum permissible insidediameter d1 of the tube.