Automation System
Many things can be done to minimize downtime loss. Identify two of them.

both b and c
None of these
stock critical spare parts
establish a user forum program
provide an extra workstation

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Automation System
How is the integral mode implemented on a digital controller?

All of these
the digital controller cannot handle integral mode
None of these
the error signal is summed over a discrete time interval and accumulated by the controller
the error is divided into discrete amounts

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Automation System
Most industrial control applications:

must have the process specified correctly to be successful
can be done more reliably using solid-state methods
All of these
None of these
can be solved using more than one method of control

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Automation System
A semi-continuous operation means:

a computer is a required part of the machine
the operation is continuous each shift, but stops between shifts
None of these
coffee breaks are allowed for the operator
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.

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