Flowchart diagrams that use yes/no questions are typically set up in which type of diagram?

• A. Block
• B. Flowchart
• C. Tree
• D. Circuit

Answer: (A)

When you need to guide a process by a binary choice and show how different functional units connect, a block diagram is the natural fit. Each block represents a component or function, and the flow between blocks carries the decision logic—yes or no—through the system. This gives a high-level view of how a vehicle's electrical or mechanical system responds to a binary decision without detailing every procedural step.

Flowcharts also handle yes/no decisions with diamond-shaped decision points, but they focus on step-by-step procedures. Tree diagrams show hierarchical branching, not the system-wide flow of control between functional blocks, and circuit diagrams illustrate electrical connections rather than decision-driven flow.