SmartSurvey lets you control the size, positioning and display options for each individual question. If you wish, you can also specify a CSS class for additional control.
To customise your question layout:
If you need to hide a question, but still have it load in the background (for piping purposes, for instance) then type "hidden" into the "CSS Class" box. Don't click "Hide Question" as the question won't be loaded at all.