Question

a __________ is a system that uses vertical posts which are separated to support a horizontal beam.
a. truss \t\t\t\t\t\t\t c. post-and-lintel
b. load-bearing \t\t\t\t\t d. crenellation

please select the best answer from the choices provided

a
b
c
d

Explanation:

To solve this, we analyze each option:

• Option a (truss): A truss uses triangular units, not just vertical posts and a horizontal beam.
• Option b (load - bearing): This is a general term for structures that carry load, not a specific system with vertical posts and a horizontal beam as described.
• Option c (post - and - lintel): By definition, this system consists of vertical posts (columns) that are separated and support a horizontal beam (lintel).
• Option d (crenellation): This refers to the notched pattern on fortifications, not a structural system with vertical posts and a horizontal beam.

Answer:

C. post - and - lintel