Automation System
Use of modern control technology in automation systems:

increases yield
All of these
improves reliability
None of these
reduces costs

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Automation System
Programmable controllers:

(a) and (c) above
are widely used in many different industries
cannot perform functions other than relay logic
None of these
are programmed using relay ladder logic

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Automation System
A stepping motor;

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

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