You will find much useful aircraft tire information on these following webpages...
Aircraft tire Information
Desser Aircraft Tire & Rubber Company
However, the precise answer you seek doesn't appear to be listed. I would say that the answer your instructor is seeking, is that many aircraft wheels are of the split-wheel design.
To eliminate any chance of dangerous errors being made in the wheel/tire removal... where the fasteners holding the two halves of the split wheel assembly together, are mistaken for the fasteners securing the wheel to the axle hub... tire deflation before removal, is a necessary step.
Michelin aircraft tire information and knowledge test...
http://www.airmichelin.com/uploadedF...on_level_1.pdf
FAA Tire Advisory Circular, 4/18/05...
http://rgl.faa.gov/Regulatory_and_Gu...E/AC20-97B.pdf