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

Caparitive
Sonic
None of these
Electrostatic
Digitizing sr amer

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Automation System
A semi-continuous operation means:

the operation is continuous each shift, but stops between shifts
each operation in a sequence is continuous, but subsequent operations in the sequence may be different.
a computer is a required part of the machine
None of these
coffee breaks are allowed for the operator

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Automation System
A dc servo motor:

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

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