Hi, Vladimir.
Depending on the survey you want to run, the easiest way is to enable the Feedback module. Some people will say that it is not as comprehensive as the Questionnaire module, but it's a lot easier to enable Feedback than to install another module. The Feedback module also maintained as a standard plugin, so it's been through more testing and quality control.
In relation to learning styles, I would suggest you avoid wasting time getting your students to undertake learning styles tests. While such tests have face value, they are not going to help you improve the educational outcomes for your students. There's an interesting discussion about learning styles in differentiation here...
https://moodle.org/mod/forum/discuss.php?d=278243
My advice would be to provide resources to your students in the most appropriate modalities, relative to the concepts being taught. Use surveys and other means to improve your resources for future iterations.