Question

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.
a.
(1) center; (2) post-and-bearing
b.
(1) base; (2) springing line
c.
(1) keystone; (2) groin vault
d.
(1) sides; (2) post-and-lintel

Answer 1

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

Explanation: An arch directs its thrust to its sides/abutments. A post-and-lintel system uses a horizontal member (lintel) supported by posts to carry the load above.