Programmable Logic Controllers (PLCs) - JSS3 Basic technology Past Questions and Answers - page 1
What is a Programmable Logic Controller (PLC)?
A type of computer used for word processing
A device used to control industrial processes
A tool for editing photos and videos
A device for playing music
What is the primary function of a PLC?
To cook food automatically
To control electromagnetic processes
To play video games
To manage social media accounts
Which programming language is commonly used in PLCs for creating control algorithms?
Python
C++
Ladder Logic
HTML
What does ladder logic resemble?
Mathematical equations
Electrical relay logic diagrams
Cooking recipes
Music notes
Which of the following is NOT a benefit of using PLCs in industrial automation?
Improved efficiency
Flexibility in programming
Decreased reliability
Accuracy in control
What are function block diagrams (FBDs) used for in PLC programming?
Creating graphical user interfaces
Writing text based algorithms
Simplifying complex control tasks
Sending emails
Which programming language provides a text-based approach similar to high-level programming languages?
Ladder Logic
Function block diagrams (FBD)
Structured text (ST)
Assembly language
What do practical exercises with PLCs typically involve?
Playing video games
Programming and operating PLCs
Writing novels
Painting pictures
Which component of a PLC converts electrical signals into physical action?
Sensor
Actuator
Switch
Battery
What is PID control commonly used for in PLC applications?
Temperature regulation
Playing music
Driving cars
Writing emails