Question:
Various designs of an application screen are shown below. Identify the screen that INCORRECTLY depicts functions of standard interface components.
Various designs of an application screen are shown below. Identify the screen that INCORRECTLY depicts functions of standard interface components.
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Radio buttons are always used for binary choices like "Yes/No". If you see a mockup where both radio buttons in a single group are selected, it is a major design error.
Updated On: Jun 25, 2026
- Fig A
- Fig B
- Fig C
- Fig D
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Question:
This question belongs to the topic of
User Interface (UI) Design and Interaction Guidelines.
We are shown four different UI design mockups for a delivery address and packaging screen. We must identify which screen contains a violation of standard interface component behaviors (such as checkboxes, radio buttons, or text input fields).
Step 2: Key Formula or Approach:
We review the standard behavioral rules for basic UI controls:
• Radio Buttons: Used for mutually exclusive selections within a group. Only one radio button in a set can be active (selected) at any given time. Selecting one must deselect the others.
• Checkboxes: Used for independent, non-exclusive selections. Multiple checkboxes can be selected simultaneously.
Step 3: Detailed Explanation:
• Let us analyze the components on each screen:
- Screen A: Uses mutually exclusive radio buttons for "Home" vs "Work" and "Cardboard" vs "Foam" vs "Hard Case". It uses checkboxes for "Next Day", "Needs OTP", and "Call". This is correct.
- Screen B: Uses standard dropdowns and text input areas correctly.
- Screen C: Shows standard checkbox behavior for optional delivery instructions.
- Screen D: Look closely at the section labeled "Share live location for delivery" which has two options: "Yes" and "No".
- Both the "Yes" and "No" options are displayed as filled circular radio buttons.
- This indicates that both "Yes" and "No" are active simultaneously.
- Because radio buttons must be mutually exclusive, having both selected at the same time is a fundamental violation of standard UI guidelines.
Step 4: Final Answer:
Screen (D) incorrectly depicts the function of radio buttons.
This question belongs to the topic of
User Interface (UI) Design and Interaction Guidelines.
We are shown four different UI design mockups for a delivery address and packaging screen. We must identify which screen contains a violation of standard interface component behaviors (such as checkboxes, radio buttons, or text input fields).
Step 2: Key Formula or Approach:
We review the standard behavioral rules for basic UI controls:
• Radio Buttons: Used for mutually exclusive selections within a group. Only one radio button in a set can be active (selected) at any given time. Selecting one must deselect the others.
• Checkboxes: Used for independent, non-exclusive selections. Multiple checkboxes can be selected simultaneously.
Step 3: Detailed Explanation:
• Let us analyze the components on each screen:
- Screen A: Uses mutually exclusive radio buttons for "Home" vs "Work" and "Cardboard" vs "Foam" vs "Hard Case". It uses checkboxes for "Next Day", "Needs OTP", and "Call". This is correct.
- Screen B: Uses standard dropdowns and text input areas correctly.
- Screen C: Shows standard checkbox behavior for optional delivery instructions.
- Screen D: Look closely at the section labeled "Share live location for delivery" which has two options: "Yes" and "No".
- Both the "Yes" and "No" options are displayed as filled circular radio buttons.
- This indicates that both "Yes" and "No" are active simultaneously.
- Because radio buttons must be mutually exclusive, having both selected at the same time is a fundamental violation of standard UI guidelines.
Step 4: Final Answer:
Screen (D) incorrectly depicts the function of radio buttons.
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