EXAMPLES 101 



the disc. Determine the resultant upward pressure on the shaft at a 

 speed of 400 revolutions per minute. 



Answer. 844 Ihs. 



(7) A pipe 4 inches diameter is suddenly enlarged to 6 inches diameter. 

 Determine the consequent loss of energy per Ib. of water with a velocity 

 of flow in the small pipe of 6 feet per second. 



Answer. '173 foot Ib. per Ib. 



