A Three-Wire Control Circuit Uses Momentary Contact, Start-Stop Stations, and a Holding

question 1

Multiple Choice

A three-wire control circuit uses momentary contact, start-stop stations, and a holding circuit interlock connected __________with the start button to maintain the circuit.

• A)in tandem
• B)in parallel
• C)alternately
• D)in series

Analyze the elements of storytelling and the construction of narrative arcs.

Relate historical events or figures to broader themes or lessons.

Grasp the importance of innovation and accidental discoveries in science and technology.

Understand the relationship between cause and effect in fictional and non-fictional narratives.

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Definitions:

Structured Text

A high-level programming language designed for industrial automation. It resembles the syntax of Pascal and is one of the five languages for programming PLCs.

Functional Block Diagram

A graphical representation that illustrates the functions and flow of data among different blocks of a system, highlighting the system's functional interactions.

Ladder Diagram

An industry standard for representing relay logic control systems. The diagram resembles a ladder because the vertical supports of the ladder appear as power feed and return buses and the horizontal rungs of the ladder appear as series and/or parallel circuits connected across the power lines.

Ladder Rung

A horizontal row in a ladder logic diagram, representing a condition leading to an outcome in programmable logic controllers (PLCs).