QI/ A/ Two copper plates of 25 mm thick and of 60 kN strength are riveted by a single lap joint. If the allowable shearing and bearing stresses for the rivet are 100 MPa and 170 MPa, respectively, then what is the strength of the rivet? B/ Three rods of steel, aluminum and bronze are rigidly attached as shown in Figure (1). Axial loads are applied at the positions indicated. Find the maximum vahue of P that will not exceed a stress in steel of 180 MPa, in alumimum of 100 MPa, and in bronze of 125 MPa. Aluminum Steel d= 25 mm Bronze d = 20 mm d= 30 mm 3P 2P 3m 2 m QI/ A/ Two copper plates of 25 mm thick and of 60 kN strength are riveted by a single lap joint. If the allowable shearing and bearing stresses for the rivet are 100 MPa and 170 MPa, respectively, then what is the strength of the rivet? B/ Three rods of steel, aluminum and bronze are rigidly attached as shown in Figure (1). Axial loads are applied at the positions indicated. Find the maximum vahue of P that will not exceed a stress in steel of 180 MPa, in alumimum of 100 MPa, and in bronze of 125 MPa. Aluminum Steel d= 25 mm Bronze d = 20 mm d= 30 mm 3P 2P 3m 2 m