PROBLEM 3.10 The shafts of the pulley assembly shown are to be redesigned. Knowing that the allowable shearing stress in each shaft is 8.5 ksi, determine the smallest allowable diameter of (a) shaft AB, (b) shaft BC.
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PROBLEM 2.5
An aluminum pipe must not stretch more than 0.05 in. when it is subjected to a tensile load. Knowing that psi and that the maximum allowable normal stress is 14 ksi, determine (a) the maximum allowable length of the pipe, (b) the required area of the pipe if the tensile load is 127.5 kips.
What should a process technician do first with rainfall buildup in a containment wall?
A) Open a valve and drain the liquid B) Test the water to ensure it is free of contaminants C) Leave the rainwater to cool off the containment wall D) Use a new containment wall
Wireless communication in the infrared region must always be line-of-sight communications
Indicate whether the statement is true or false
Technician A says that when stress relieving on high strength steel surfaces, it must be done over a larger area than on standard or mild steel. Technician B says a limited amount of heat can be used so long as the safe temperature time threshold is not exceeded. Who is correct?
A. Technician A only B. Technician B only C. Both Technicians A and B D. Neither Technician A nor B