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

None of these
it simplifies the trial-and-error method
there is better coordination in the materials-handling area
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

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Automation System
A flip-flop:

remembers what was previously stored in it
is a combinational logic device
None of these
is a sequential logic device
(a) and (c)

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Automation System
High-level languages:

require knowledge of the computer design
are very difficult to use
are "procedure-oriented"
None of these
cannot be used with automatic systems.

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Automation System
Light sensors:

come in a wide variety of mounting styles
never use infrared light as light source
work in direct sunlight
None of these
cannot be used a s limit switches.

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