You can chain one question to another if you want a certain logic in who is asked which questions.
You want to know if the visitors of your website own a car. And you also want to know which color their car is. It's easy to ask people if they own a car or not, but you want to make sure that only people who actually own a car are asked which color their car is. In this case you should chain the two questions together.
1. Add first question: Do you own a car?
2. Add the second question: What color is you car?
Press "edit" in the second question as show in picture below.
3. Choose the first question "Do you own a car?" and check "Yes" since we only want the second question to be asked to people who answers "Yes" to the first question.
That's it!. People who answer that they own a car will also be asked which color it is. People who answer that they don't have a car will just move on to other questions in the survey.