Q.3)A cylindrical compound shaft consists of two pipes as shown below. Pipe (1) has an outside diameter of 6.250 in. and a wall thickness of 0.500 in. Pipe (2) has an outside diameter of 4.000 in. and a wall thickness of 0.375 in. The compound shaft is subjected to an axial compression load of P = 41 kips and torques TB = 30 kip-ft and Tc = 9 kip-ft as shown below. (a) Determine the principal stresses and the maximum shear stress at point H on the surface of the shaft. (b) Show these stresses on an appropriate sketch on paper. TB (1) Tc (2) Н. K. P B

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Pressurized pipe flow

A 15-kilometer-long pipe with a pipe diameter of one meter transports water at a speed of one meter per second. The pipe has a friction coefficient of 0.005. Calculate the frictional head loss?