10.04 User Interfaces For Control - Quiz

Section 10.4 Quiz: User interfaces for control

1. What is a key advantage of using CLI (Command Line Interface) for mechatronic systems?

   • CLIs are more visually appealing than graphical interfaces
   • CLIs can be easily automated with scripts and provide precise control {data-correct}
   • CLIs require less programming knowledge to create
   • CLIs work better on touchscreen devices

2. Which of the following is NOT a characteristic of good error messages in mechatronic systems?

   • Clear and easy to understand
   • Specific about what went wrong
   • Written in technical jargon for accuracy {data-correct}
   • Actionable with suggested solutions

3. In the dashboard example, what type of information should be displayed most prominently?

   • Historical data and trends
   • Safety alerts and critical system status {data-correct}
   • User preferences and settings
   • Detailed technical specifications

4. What is the primary purpose of progress bars in mechatronic control interfaces?

   • To make the interface look more modern
   • To show current values relative to safe operating ranges {data-correct}
   • To display historical performance data
   • To indicate system processing speed

5. Which message severity level should be used when a sensor reading approaches but hasn’t exceeded its safety limit?

   • INFO
   • WARNING {data-correct}
   • ERROR
   • CRITICAL

6. In the sorting system interface example, what happens when the emergency stop is activated?

   • The system reduces speed to 50%
   • The system continues running but logs the event
   • All motion halts immediately and the system cannot restart until reset {data-correct}
   • The system switches to manual control mode

7. What makes a status indicator effective for mechatronic systems?

   • Using many different colors and animations
   • Providing consistent symbols and immediate visual feedback {data-correct}
   • Displaying as much technical detail as possible
   • Requiring users to click for more information

8. When designing a CLI command structure, which approach is most user-friendly?

   • Using single-letter commands to save typing time
   • Using descriptive command names with optional parameters and help text {data-correct}
   • Requiring users to memorize numeric codes for each function
   • Making all commands case-sensitive for precision

9. What should happen when a user enters an invalid command in a well-designed CLI?

   • The system should shut down to prevent errors
   • The system should guess what the user meant and execute that
   • The system should provide clear error message and suggest valid alternatives {data-correct}
   • The system should ignore the command silently

10. In the greenhouse dashboard example, why are target values shown alongside current sensor readings?

    • To make the interface look more complete
    • To help users quickly identify if values are within acceptable ranges {data-correct}
    • To display the maximum possible sensor values
    • To show what the sensors were reading yesterday