Algorithms and Flowcharts — Important Questions

Oval or Rounded Rectangle

Step 1: This question tests your knowledge of flowchart symbols. Step 2: Rectangle is the shape for the Process Box, used for mathematical operations. Step 3: Diamond or Rhombus is the shape for the Decision Box, used for Yes/No conditions. Step 4: Parallelogram is the shape for the Input/Output Box. Step 5: The Terminal Box, which marks the START and STOP of a flowchart, is represented by an Oval or a Rounded Rectangle. Remembering this is important because every flowchart must begin and end with this symbol.

Parallelogram

Step 1: The question asks specifically about the Input/Output box. Step 2: A Rectangle is used for the Process Box (e.g., Area = L × B). Step 3: An Oval is used for the Terminal Box (Start/Stop). Step 4: A Diamond is used for the Decision Box (Yes/No questions). Step 5: A Parallelogram is used for the Input/Output Box. This is where we write statements like 'INPUT a number' or 'PRINT the result'. Think of the slanted shape as data flowing in or out at an angle.

A statement that results in a True/False or Yes/No condition

Step 1: This question tests understanding of the Decision Box purpose. Step 2: Mathematical calculations go in the Process Box (Rectangle). Step 3: The beginning and end are marked by the Terminal Box (Oval). Step 4: Input and output use the Parallelogram. Step 5: The Decision Box (Diamond shape) is specifically used for conditions that have two possible outcomes — True/False or Yes/No. For example, 'Is A > B?' — if Yes, one path is followed; if No, a different path is followed. This allows a flowchart to show branching logic.

To show the direction of flow of instructions

Step 1: Identify what each element in a flowchart does. Step 2: Mathematical calculations are represented in the Process Box (Rectangle). Step 3: Start and end are marked by the Terminal Box (Oval). Step 4: Input values are represented in the Input/Output Box (Parallelogram). Step 5: Flow Lines are the arrows that connect all the boxes in a flowchart. Their job is to show the direction of flow — telling you which step comes after which. They usually go from top to bottom or left to right, with an arrowhead showing the direction.