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| Thought Questions |
Open Ended Problems |
| 1. How
fast can the following systems respond? What limits the
"performance" of each system? |
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| a. A fire engine in response to an alarm. |
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| b. A company to a message that stores want more of their products. | |
| c. Your friends to news that a party is downstairs. |
| 2 Some control must respond rapidly because the goal is safety. |
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a. Discuss some common safety concerns in a process plant. b. For each item in (a) above, determine a valve (final element) that would have a rapid effect and provide good control for safety.
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