What is a major difference between multiple single-segment and composite profile tolerances?
What will be an ideal response?
ANS:
In a multiple single-segment profile tolerance, each segment can constrain translational and rotational degrees of freedom. In a composite profile tolerance, only the uppermost segment can constrain translational and rotational degrees of freedom. The lower segments can only control rotational degrees of freedom.
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All of the following are true statements about the workers in the Lowell factory system EXCEPT
A. they were virtually all New England farm girls. B. they were carefully supervised on and off the job by watchful matrons. C. they lived in company boardinghouses and were forbidden to form unions. D. they worked a maximum five days a week for eight hours a day. E. they labored under grueling working conditions.
The most common method to establish a current path through the gas uses a high-frequency ____________________ current carried through the conductor, the electrode, and back from the nozzle tip.
Fill in the blank(s) with the appropriate word(s).
The ____________________ is the point in low and medium carbon steels at which the metal begins to stretch when force (stress) is applied after which it will not return to its original length.
Fill in the blank(s) with the appropriate word(s).
The Society of Automotive Engineers (SAE) has defined different classes of protocols. What are the classes based on?
What will be an ideal response?