Which of the Following Is Associated with a Control Chart

question 16

Multiple Choice

Which of the following is associated with a control chart?

• A)center line
• B)upper specification limit
• C)lower specification limit
• D)cumulative defect line

---

Definitions:

Retentive Timer

A type of timer in programmable logic controllers (PLCs) that retains its value even when the power is turned off or when the device is in an idle state.

Retentive Timers

Timers that retain their value even after the controlling input is turned off, allowing them to resume timing from the same point when reactivated.

Accumulated Time

The total time that has been recorded or tallied up, often used in contexts where time durations are important, such as in timers or monitoring systems.

Timer Tag Name

An identifier used in programming and automation that refers to a specific timer, tracking its duration or status within a control system.