A 2-in. solid shaft is driven by a 36-in. gear and transmits power at 120 rpm. If allowable shearing stress is 12 ksi, what horsepower can be transmitted?

The members of the structure in the figure weigh 200 lb/ft. Determine the smallest diameter pin that can be used at A if the shearing stress is limited to 5000 psi. Assume single shear. 

The shaft is subjected to the axial force of 40 kN. Determine the average bearing stress acting on the collar C and the normal stress in the shaft. 

In the figure shown below there are 125 ft of 2 -in pipe, 75ft of 6 -in pipe, and 150 \mathrm{ft} of 3 -in pipe, all cast iron. There are two 90 elbows and an open globe valve, all flanged. If the exit elevation is zero and the elevation at A is 100 ft, what horsepower is extracted by the turbine when the flow rate is 0.16 of water at ? For water at , take and slug/ft.s. For cast iron, . For Re=113500,37800, and 75600 , take f 0.0314,0.0266, and 0.0287 respectively.

sharp 2" entrance: K=0.5; two 2" 90 elbows: K=2(0.39)

2" sudden expansion: K 0.79 ; 3" open globe valve: K 8.5