An old, rough-surfaced, 2-m-diameter concrete pipe with a manning coefficient of 0.025 carries water at a rate of 5.0 m3/s when it is half full. it is to be replaced by a new pipe with a manning coefficient of 0.012 that is also to flow half full at the same flowrate. determine the diameter of the new pipe.

On a average work day more than work place firs are reorted

Adouble-strand no. 60 roller chain is used to transmit power between a 13-tooth driving sprocket rotating at 300 rev/min and a 52-tooth driven sprocket. a) what is the allowable horsepower of this drive? b) estimate the center-to-center distance if the chain length is 82 pitches. c) estimate the torque and bending force on the driving shaft by the chain if the actual horsepower transmitted is 30 percent less than the corrected (allowable) power.

Shafts are machine elements that are used to a) carry axial loads b) direct shear loads c) transmit power d) rotate at constant speed e) none of the above circular and square shafts subjected to the same torque under the same circum behave a) the same way b) almost the same way