Why Should Historical Experience Be Used with Caution in a Standard

question 158

Multiple Choice

Why should historical experience be used with caution in a standard setting?

• A)Historical experience provides very rigorous guidelines.
• B)Operating personnel may not be able to achieve operating standards based on historical experience.
• C)Historical experience can perpetuate inefficiencies.
• D)Standards based on historical experience are better than standards based on engineering studies.

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Definitions:

Electrical Signals

Variations in electric currents or electromagnetic fields used to convey information between components or systems.

On/Off Control

A simple form of control using binary signals to activate or deactivate devices, without intermediate states.

Measured Variable

A specific quantity or condition that is monitored and measured in a process, such as temperature, pressure, or flow rate.

Set Point

The desired or target value for a controlled variable in a control system, against which actual values are compared to determine the need for corrective action.