The question branching features let you define conditions that will redirect the user to a given question based on his answers. This allows you to change and control the flow of your survey dynamically based on the respondent answers.
Question branching is only available on surveys having the single question flow mode enabled.
Here we have set the current question to branch to "Q.3" if the condition is met. If the condition is not met ngSurvey will show the next question being after the current question based on their display order in your survey.