An example of output module is__________.*2 pointsa. temperature sensorb. switchc. LED 7-segmentd. push button

The correct answer is c. LED 7-segment.

This is because an output module is a device that receives information from the control system and performs a physical action. In this case, the LED 7-segment displays numerical information received from the control system, making it an output module.

On the other hand, a temperature sensor (option a) and a push button (option d) are examples of input modules as they send information to the control system. A switch (option b) can be either an input or an output module depending on its use, but it is most commonly used as an input module.