The tank of the air compressor is subjected to an internal pressure of 0.63 mpa. if the internal diameter of the tank is 550mm, and the wall thickness is 6mm (a). construct a net mohr's circle depicting the state of stress acting at any point along the length of the 20 marks (b). illustrate the state of stress above on a differential element (infinitesimal cube).

The mass flow rate of the fluid remains constant in all steady flow process. a)- true b)- false

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.

Aquick transition of the operating speed of a shaft from its critical speed will whirl amplitude. (a) increase (b) limit (c) not affect (d) zero