Yes! This can be done within the Risk > Questionnaires tab of the Advisor Portal. Choose a questionnaire from the dropdown in the upper left, click the "..." icon next to the name of the assessment, and then select "Download":

Please note that only Published questionnaires are able to be downloaded. You will not be able to download questionnaires that are still in the Draft phase.
Additionally, you are able to print a completed assessment from within a client plan, by heading to the Gear Icon > Reports > Risk:
