G A steel water pipe has an inner diameter of 12 in. and a wall thickness of 0.25 in. Determine the longitudinal and hoop stresses developed in the wall of the pipe at point B for the two cases below. Also, for each case draw the state of stress on a volume element located on the wall at point B. (a) The valve A is opened and the flowing water has a pressure of 200 psi. (b) The valve A is closed and the water pressure is 250 psi.

Afour cylinder four-stroke in-line engine has a stroke of 160mm, connecting rod length of 150mm, a reciprocating mass of 3kg and its firing order is 1-3-4-2. the spacing between cylinders is 100mm. i. show that the engine is in balance with regard to the primary inertia forces and primary 3. a and secondary inertia couples. li determine the out of balance secondary inertia force ii. propose ways of balancing this out of balance force and discuss the challenges that will arise

Determine whether or not it is possible to compress air adiabatically from k to 140 kpa and 400 k. what is the entropy change during this process?

The higher the astm grain size number, the finer the gran is. a)-true b)-false