Introduction

Question 1

• Real-time use of measured signals to calculate control actions.
• Continuous adjustment to maintain system performance.

Answer 1

Feedback mechanism

Question 2

• Abstract representation of signal or information flow in a system
• Compresses complex system information into a visual summary

Answer 2

block diagrams

Question 3

No feedback or measurement of the output

Answer 3

No feedback or measurement of the output

Question 4

• Simplified sketches for an overview of process to be controlled.
• shows process (plant) components.
• No standard representation, better with good pictures

Answer 4

Process Layouts

Question 5

• Standard symbols for unit operations and components.
• Common in industries like power generation and sanitation.

Answer 5

Process Flow Sheets