PLC Technology Quiz

What does PLC stand for?

• Programmable Logic Chip

• Programmable Logic Circuit

• Programmable Logic Controller

• Programmable Logic Computer

When was the first PLC developed?

• 1980

• 1969

• 1995

• 1950

What is the primary role of the CPU module in a PLC?

• Read inputs, execute the control program, update outputs

• Provide power to the PLC

• Store data in the memory

• Connect to the internet

Which type of memory maintains the information even if the power is interrupted?

• RAM

• ROM

• PROM

• EEPROM

What do input modules in a PLC connect to?

• The power supply

• The internet

• The CPU module

• Sensors and actuators

What is the most common technique for programming PLC's?

• C++ programming

• Java programming

• Python programming

• Ladder Logic

What does IEC 61131-3 standardize?

• Web technologies

• PLC programming languages

• Computer hardware

• Data analysis techniques

What are the advantages of using PLC's in HVAC control?

• Limited computational abilities

• Cost effective for controlling complex systems

• Lack of flexibility

• High initial cost

What is the main benefit of web enabling automation?

• Reduced accessibility

• Real-time access to data and control

• Limited flexibility

• Increased fault reporting time

What is OPC in the context of web technology?

• Optimized Protocol Connection

• Open Process Communication

• Online Programming Control

• Object Linking and Embedding