1. What does the PLC stand for?, Program Logic Computer, Programmable Logic ControllerProgrammable Logic Controller, Process Logic Circuit, Programmable Link Component, What is the primary function of a PLC in industrial automation?, To supply high-voltage power directly to heavy machinery, To replace manual human operators completely for every physical task, To automate industrial processes and control machinery based on logic inputs and outputs, To design computer software applications for office workers, Which of the following best describes how a PLC differs from a standard desktop computer?, PLCs are designed to operate reliably in harsh industrial environments with vibrations, temperature changes, and electrical noise, PLCs have much higher graphics capabilities for gaming, PLCs do not use a processor or memory, Standard computers are built to control heavy industrial assembly lines directly, What are the two main types of signals that a PLC receives and processes?, Audio and Video signals, Analog and Digital signals, Wi-Fi and Bluetooth signals, High-frequency and Low-frequency radio signals, Which of the following is an example of a digital (discrete) input device connected to a PLC?, A temperature sensor reading continuous degrees, A pressure transducer measuring variable fluid pressure, A simple push-button or limit switch (ON/OFF state), A variable speed motor drive, What is the purpose of the output module in a PLC system?, To read signals coming from field sensors, To translate the processor's low-power logic decisions into signals that control physical devices like motors, valves, and lights, To store the original factory operating system of the building, To cool down the central processing unit, Which component of the PLC acts as the "brain" that executes the control program and makes decisions?, Power Supply unit, Input terminal strip, Central Processing Unit (CPU), Communication cable, What language is most commonly associated with programming a PLC, which visually resembles relay logic schematics?, Python, Ladder Logic, HTML, JavaScript, Why were PLCs originally invented to replace traditional hardwired relay systems in factories?, To make control systems cheaper, smaller, and much easier to modify via software instead of rewiring physical hardware, To increase the electrical power consumption of factories, To eliminate the need for any electricity in control rooms, To make machines run slower and safer, Which of the following is a real-world application commonly controlled by a PLC mentioned or implied in industrial engineering?, Automated assembly lines, water treatment plants, and HVAC systems, Home video streaming services, Commercial airline ticket booking databases, Mobile smartphone application stores

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