# Piping In surveys having multiple questions its sometimes needed to re-use or quote respondent's answers to a previous answered questions or answers. This process is called piping. \ \ ngSurvey supports two types of piping * [Text / Data piping](/form-management/form-designer/piping/text-data-piping.md) to pipe the respondent answers as plain text into labels or survey content. * [Carry Forward / Carry on Answers](/form-management/form-designer/piping/carry-forward-answers.md) to pipe the actual respondent answers into another question and allow these answers to be selected again from that new question. Carry forward answers are usually used with multiple selection questions where you first want to ask the respondent to choose among a set of multiple answers and then ask a more specific question about only the answers that have been selected in the multiple selection question. * [Javascript piping](/form-management/form-designer/piping/javascript-piping.md) to pipe output of custom javascript code. --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://docs.ngsurvey.com/form-management/form-designer/piping.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.