Automation System
Robots consist of three basic components; power supply, control (memory) console, and:

microcomputer
software
None of these
mechanical unit (arm)
coaxial cable

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Automation System
A dc servo motor:

uses a variable dc voltage for speed control
None of these
All of these
can provide precise position control
uses a tachometer for speed feedback

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Automation System
An aneroid barometer

measures pressure by sensing deflection of an evacuated chambers.
can be used to measure gas or liquid flow rates
can measure only atmospheric pressure
None of these
is very unreliable

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