fill the blank please
1-the branch of engineering called ______ is concerned with ways of designing machines and environments to match human capabilities.
2-______________is the central purpose of engineering according to J.B. reswick.
3-What are two factors will indicate large a inventory __________ , __________.
4- ________ allow the engineer to estimate the time required to produce a unit after workers are more familiar with the process and after the initial, early runs have been timed.