Automation System
Computer-based controllers:

are very difficult to change
should be built in a modular fashion wherever possible
(a) and (c) above
None of these
are very flexible

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Automation System
The robot:

All of these
is very primitive at the present
None of these
represents the most powerful new industrial automation tool currently on the horizon
will be more useful when robot vision is improved significantly

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Automation System
Today, programmable controllers:

are relatively low cost compared with the original digital equipment available for industrial control
can be cost effective even when replacing just a few relays
None of these
are more powerful then the first controllers on the market
All of these

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Automation System
Pressure sensors:

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

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