PLC Hardware and Programming Quiz

Which section of a PLC converts signals to the voltage level required by the CPU?

• Power supply

• Input section

• Output section

• Programming device

What is a limitation of using integrated programming devices with PLCs?

• They are incompatible with most PLCs

• Program changes can be time-consuming

• They require additional hardware

• They cannot store PLC programs

What determines the size of a PLC?

• The type of programming device used

• The number of CPUs

• The power supply capacity

• The number of input and output terminals

What is the standard unit of memory in a PLC?

• Byte

• Kilobyte

• Megabyte

• 16-bit word

How do modular PLCs differ from fixed PLCs?

• They can be expanded with additional sections

• They require less space

• They are used in smaller applications

• They have a fixed number of input and output terminals