Automation System
Stepping motors:

can run at varying speeds
can run both clockwise and counterclockwise
can be built to index different amounts by changing the pole configuration
All of these
do not require commutators

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Automation System
The program counter:

None of these
is where arithmetic is done in a computer.
decides which program to run
contains the address of the next instruction to be executed
counts the number of instructions that have been executed

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Automation System
One of the major benefits of using CAD in tool design is that:

there is better coordination in the materials-handling area
it simplifies the trial-and-error method
tool motions can be checked to see if there is interference between the tool and the object
product design represents approximately one-half the engineering costs
None of these

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