Automation System
A discrete parts process is:

None of these
normally a repetitive series of operations
(b) and (c)
the same as a continuous process except a different controller must be used
often encountered in manufacturing

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Automation System
An aneroid barometer

can measure only atmospheric pressure
is very unreliable
can be used to measure gas or liquid flow rates
measures pressure by sensing deflection of an evacuated chambers.
None of these

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Automation System
Time proportioning control:

can be used on a PM550 programmable process controller
is less efficient than normal PID control
cannot use a TM990 micro¬computer
a and b above.
None of these

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