09.03 Algorithmic Patterns Control - Quiz

Section 9.3 Quiz: Algorithmic Patterns for Control

1. In a state machine, what triggers a transition from one state to another?

   • Actions
   • Events {data-correct}
   • States
   • Variables

2. Which component of a PID controller responds to the current magnitude of error?

   • Proportional (P) {data-correct}
   • Integral (I)
   • Derivative (D)
   • Setpoint

3. What is the main purpose of the Integral (I) term in a PID controller?

   • Prevent overshoot
   • Respond to current error
   • Eliminate steady-state error {data-correct}
   • Reduce oscillation

4. A conveyor belt system needs to transition from “Running” to “Stopping” when which events occur?

   • Stop button pressed {data-correct}
   • Safety sensor blocked {data-correct}
   • Start button pressed
   • Speed sensor reading

5. In task scheduling, what does “rate-monotonic” priority assignment mean?

   • All tasks get equal priority
   • Tasks with higher frequencies get higher priority {data-correct}
   • Tasks with longer execution times get higher priority
   • Tasks are assigned random priorities

6. Which PID tuning problem is indicated by a system that oscillates around the setpoint?

   • Proportional gain too low
   • Integral gain too high {data-correct}
   • Derivative gain too low
   • Setpoint too high

7. State machines are most appropriate for controlling systems that:

   • Have continuous variables only
   • Exist in distinct operating modes {data-correct}
   • Require precise mathematical calculations
   • Never change behaviour

8. In a multi-task control system, which tasks should typically receive the highest scheduling priority?

   • Data logging tasks
   • User interface updates
   • Safety monitoring tasks {data-correct}
   • File operations