QS:Time limit
From LimeSurvey Manual
Time limit (time_limit)
Description
Setting the time_limit attribute on a question will cause a countdown timer to begin counting down as soon as that question/page is loaded. At the expiry of the countdown timer the question will either automatically move on to the next page or become read-only.
Valid values
- Any positive integer number
Example
Set it to 240 to count down from 4 minutes (240 seconds).