Automation System
An encoder:

converts a binary number to a decimal number.
converts an input to a binary number
can have only four keys
None of these
is used to send telegraph signals

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Automation System
What is the process lag?

All of these
None of these
The lag in the error signal when the setpoint is changed.
The time it takes for the sensor to respond to a changed.
The time it takes for the mass of the process to respond to an input change.

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Automation System
High-level languages:

are very difficult to use
are "procedure-oriented"
None of these
require knowledge of the computer design
cannot be used with automatic systems.

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