Q5.
A) A standard 2-in schedule 40 pipe is proposed to be used to support the roof of a porch during renovation. Its length is 13.0 ft. the pipe is made from ASTM A501 structural steel.
(B) Determine the safe load on the pipe to achieve a design factor of 3 if the pipe is straight.
(C) Determine the safe load if the pipe has a initial crookedness of 1.25 in.
Q6.
A) Design a cylindrical tank for compressed air that will be used to provide remote service for truck tire repair. The air pressure will be 300psi. the minimum internal diameter for the tank is to be 24 in.use AISI 1040 cold-drawn steel & a design factor of 8 based on the ultimate strength. Check the final design for a maximum pressure of 900 psi by computing the design factor based on the yield strength.
B) Write the equation for the ultimate strength of a composite in terms of the properties of its matrix & filler materials.
C) A wood block having a cross section of 3.50 *7.50 in is to be placed on a bed of compact gravel. Compute the maximum allowable compressive load that can be applied to the blockso as not to exceed the bearing strength of the gravel.
