Question

The two main architectural systems of frame construction are ________________
a.
the skeleton and the post-and lintel.
b.
the materials and the truss.
c.
the design and the architect.
d.
the shell and the skeleton.

Answer 1

d. the shell and the skeleton.

Explanation: The two primary systems are the skeleton (frame construction that carries loads) and the shell (load-bearing exterior walls).