Hello,

For b.arch aptitude section you should prepare for the following types of questions

Objects, texture related to architecture.

Interpretation of pictorial compositions,

Visualizing 2D-3D objects.

Mental ability and General awareness of national/ international architects and famous architectural creations

For previous question papers of B.arch you can refer to this link.

https://engineering.careers360.com/articles/jee-main-sample-papers

All the Best.