An Input Whose Quantity Can Be Changed in the Short

question 67

Multiple Choice

An input whose quantity can be changed in the short run is:

• A)a marginal input.
• B)a fixed input.
• C)an incremental input.
• D)a variable input.

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Definitions:

PLC Emergency Stop Circuits

Safety features in Programmable Logic Controllers designed to halt operations immediately to prevent accidents or equipment damage.

MCR Instruction

Master Control Reset Instruction, used in programming PLCs to control the execution of blocks of logic.

De-energize MCR Coil

The process of removing electrical power from a Master Control Relay (MCR) coil, which stops the current path in the control circuit.

Disconnect Switch

A disconnect switch, also known as an isolator switch, is a device used to ensure that an electrical circuit is completely de-energized for service or maintenance.