Yes, a JW could be reproved or excommunicated for improper questionings, a.k.a. 'foolish questionings'.
2 Timothy 2:23
Titus 3:9
It really depends on the circumstances, such as what was asked, how it was asked, who was asked,
and how elders interpret the content and manner of questioning. Questioning doctrine or authority
can get a JW into tribunal trouble, fast.