Relay ladder logic is used in a PC because:

MCQ Practice

Subject: Computer Science EngineeringTopic: Automation System

it is impossible to write a control program for a machine in any other logic

it is the best industrial control language ever developed.

most industrial control personnel are familiar with relay ladder logic diagrams and this is the easiest for them to use

All of the above E. None of the above

Correct Answer: C

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