Automation System
Ergonomics refers to:

the level of involvement the operator has with the workstation
None of these
the cost relationship of the workstation versus productivity
the human aspect of the environment around the workstation as well as the workstation itself
the technology involved in the workstation itself

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Automation System
What is offset error?

None of these
All of these
the difference between the control setpoint value and the actual value.
the difference between the controller output and the setting of the manipulated variable.
the difference between the sensor input and the absolute sensed parameter.

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Automation System
There are several procedures you can implement to provide maximum security. The most important of these is:

do not leave training manuals unsecured
run regular simulated tests using TARP (testing of Applications Recovery Planes)
do not allow unbonded service people to work on your equipment
Verify the reputation of the people installing your system
None of these

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Automation System
A process controller:

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

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Automation System
Pressure sensors:

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

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