Automation System
Which type of digitizer measures a wave traveling at the speed of sound?

Digitizing sr amer
Sonic
Electrostatic
Caparitive
None of these

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Automation System
Stepping motors:

do not require commutators
All of these
can run both clockwise and counterclockwise
can run at varying speeds
can be built to index different amounts by changing the pole configuration

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Automation System
Speech recognition:

will never be used in industrial controls
All of these
None of these
will be used in more applications as the technology matures.
is already widely used in industrial controls

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