Which statement about ladder logic is accurate?

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Multiple Choice

Which statement about ladder logic is accurate?

Ladder logic is a graphical PLC programming method that mirrors how relay circuits are wired. Each rung runs from the left power rail to an output coil on the right. When the conditions on a rung are met, the coil energizes and the output activates. Conditions are built with contacts arranged in series or parallel: contacts in series require all of them to be closed (AND behavior), while contacts in parallel provide alternative paths (OR behavior). The coil at the end of the rung represents the output that is energized when the rung evaluates to true. This description matches the statement that ladder logic uses rungs with series/parallel contacts and coils to represent logic, which is why it’s the best answer. The idea that ladder logic is defined by flowcharts is inaccurate, and claiming it’s used exclusively for analog signal processing is incorrect because ladder logic handles digital/discrete inputs and outputs.

Ladder logic is a graphical PLC programming method that mirrors how relay circuits are wired. Each rung runs from the left power rail to an output coil on the right. When the conditions on a rung are met, the coil energizes and the output activates. Conditions are built with contacts arranged in series or parallel: contacts in series require all of them to be closed (AND behavior), while contacts in parallel provide alternative paths (OR behavior). The coil at the end of the rung represents the output that is energized when the rung evaluates to true.

This description matches the statement that ladder logic uses rungs with series/parallel contacts and coils to represent logic, which is why it’s the best answer. The idea that ladder logic is defined by flowcharts is inaccurate, and claiming it’s used exclusively for analog signal processing is incorrect because ladder logic handles digital/discrete inputs and outputs.

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