Automation System
A stepping motor;

is a good choice where continuous rotation is needed
None of these
has a speed proportional to voltage input
can index positional movement.
has a commutator

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Automation System
A process controller:

is useful in a continuous process control application
None of these
All of these
can interface to digital and analog I/O
can solve a PID process control equation easily

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Automation System
A solenoid:

can be used only in de circuits
None of these
is spring operated
is widely used in industrial automation
is related to an aneroid

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Automation System
The use of specialized workstations:

has a high cost-performance tradeoff
None of these
provides limited growth potentials for 3-D
reduces the host computer workload and allows more users
reduces the host computer workload

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