Question

how will you draft a questionnaire?

Answer 1

1. Decide what you want to learn from administering your questionnaire
2. Plan questions that will help you get the information you need
3.Use closed-ended questions to gather specific answer
4. Use open-ended questions to solicit feedback
5.Ask questions in such a way as to avoid confusion and bias

Answer 2

Draft the questions first.
Consider the type of people you're asking if preparing a survey questionnaire. 
Be specific if writing interview questionnaire and don't forget the start and concluding statements.
Be grammatically correct.