PROBLEM 3.78 The shaft-disk-belt arrangement shown is used to transmit 3 hp from point A to point D. (a) Using an allowable shearing stress of 9500 psi, determine the required speed of shaft AB. (b) Solve part a, assuming that the diameters of shafts AB and CD are, respectively, 0.75 in. and 0.625 in.


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____ is the difference in temperature at the sensing element between make and break of the controller’s contacts when the controller is cycled.

a. Resolution sensitivity b. Operating differential c. Sensitivity d. Response time

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Carbohydrates that are composed of two monosaccharides are called ____________________

Fill in the blank(s) with correct word

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How did Diocletian find a way to protect the empire from disorderly imperial succession?

a. He persecuted the Christians. b. He created a Tetrarchy. c. He abdicated in 305. d. He suppressed a popular insurrection in Gaul.

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Technician A says that major sources of chemical dangers are from solvents containing chlorinated hydrocarbons. Technician B says that solvents can be reclaimed so that they can be reused. Which technician is correct?

A) Technician A only B) Technician B only C) Both technicians A and B D) Neither technician A nor B

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