The Forcing Function of a PLC Allows the User to Turn

question 37

Multiple Choice

The forcing function of a PLC allows the user to turn an external input or output on or off:

• A)according to the forced program.
• B)according to the main program.
• C)from the keyboard regardless of its actual status.
• D)all of these.

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Definitions:

Taiga

A biome characterized by coniferous forests, consisting mostly of pines, spruces, and larches, located in cold, northern latitudes.

Largest Biome

The taiga or boreal forest, characterized by coniferous forests, covering vast areas of northern North America and Eurasia.

Brightly Lit

Illuminated with a high degree of brightness, typically referring to spaces or objects under strong light.

Epipelagic

The upper layer of the ocean where there is enough sunlight for photosynthesis, typically down to about 200 meters.