Automation System
Automation normally means:

a net increase in jobs.
no change in jobs.
All of these
None of these
a net loss of jobs.

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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
None of these
cannot use a TM990 micro¬computer
a and b above.

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Automation System
Pressure sensors:

use the piezoresistive effect in strain gauge sensors
None of these
use an aneroid chamber with a variable resistance output
All of these
use capacitive variations to sense pressure

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