Automation System
High-level languages:

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

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Automation System
Pressure sensors:

use an aneroid chamber with a variable resistance output
use the piezoresistive effect in strain gauge sensors
None of these
All of these
use capacitive variations to sense pressure

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Automation System
D/A (digital to analog) conversion:

must be fed through a filter to reproduce the original signal accurately
both (b) and (c)
results in a binary code as the final output
None of these
has to be sampled at 1/2 the highest input frequency

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