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


Please select the best answer from the choices provided

A
B
C
D

Answer 1

D

An arch transfers its thrust to its sides (abutments). A post-and-lintel system (vertical posts supporting a horizontal lintel) carries the weight directly down through the posts.