an arch carries the thrust of weight to its ____ (1) ____. with a ____ (2) ____, the horizontal part of the…

an arch carries the thrust of weight to its ____ (1) ____. with a ____ (2) ____, the horizontal part of the structure supports all the weight above it.\na. (1) center; (2) post-and-bearing\nb. (1) base; (2) springing line\nc. (1) keystone; (2) groin vault\nd. (1) sides; (2) post-and-lintel\n\nplease select the best answer from the choices provided\n\na\nb\nc\nd

an arch carries the thrust of weight to its ____ (1) ____. with a ____ (2) ____, the horizontal part of the structure supports all the weight above it.\na. (1) center; (2) post-and-bearing\nb. (1) base; (2) springing line\nc. (1) keystone; (2) groin vault\nd. (1) sides; (2) post-and-lintel\n\nplease select the best answer from the choices provided\n\na\nb\nc\nd

Answer

Brief Explanations:

To solve this, we analyze each option:

  • Option A: An arch's thrust isn't carried to the center, and "post - and - bearing" isn't the correct structure for the second part. Eliminate A.
  • Option B: The base is not where an arch carries its thrust (it's the sides), and "springing line" doesn't match the second description. Eliminate B.
  • Option C: A keystone is the top of an arch, not where thrust is carried, and a groin vault is a type of vault, not related to the horizontal part supporting weight as described. Eliminate C.
  • Option D: An arch carries the thrust of weight to its sides. A post - and - lintel structure has a horizontal lintel (beam) that supports the weight above it, matching the description.

Answer:

d. (1) sides; (2) post - and - lintel