The velocity profile equation in Section 1 in a branched pipe stream is defined as follows: = , ( - 2 / ), = . Pipe diameters are displayed as D1 = 20 cm, D2 = 8cm and D3 = 4 cm, respectively. If the uniform velocity in Section 2 is u2 = 1 m / s, find the average velocity and direction of the current in Section 3.

Explain the difference laminar and turbulent flow. explain it with the shear stress and the velocity profiles.

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