Question
Why is it rare nowadays to have a device with pure sensor or pure actuator functionality?
Answer
B — Because, for example, a push button with LED status display also has an actuator function and an actuator with status information also has a sensor function
Correct: The text gives exactly these examples of devices combining both roles.
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An error or unclear wording? Report this questionAll proposed choices (exam context)
- A.Because controllers have replaced all sensors and actuators
- B.Because, for example, a push button with LED status display also has an actuator function and an actuator with status information also has a sensor function✓
- C.Because every device must contain a digital-analog converter
- D.Because pure sensors are not allowed on Twisted Pair
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