Definition of "line of questioning" []

• An ordering of questions so as to develop a particular argument (noun)

WordNet. Princeton University. 2010.

• "Apparently ready to refute or refuse confidences about his new lady-love, this new line of questioning had taken him aback."
• "The public hearings portion of the Rogers Commission investigation concluded with Armstrong’s leading another tough line of questioning for a NASA official Lawrence M. Weeks, Jesse Moore’s deputy in NASA’s office for space flight, but not before Chairman Rogers’s confrontational summary: Now, in answer to Mr. Armstrong’s questions, I got the impression you didn’t think there was anything wrong with the NASA communications system at all."