Arch

Question 1

A curved structure for spanning
an opening. designed to support a
vertical load primarily by axial
compression.

Answer 1

Arch

Question 2

An arch constructed of Individual stone or

brick voussoirs

Answer 2

Masonry Arch

Question 3

Any of the wedge-shaped units In a
masonry arch or vault. having side cuts
converging at one of the arch centers.

Answer 3

Voussoirs

Question 4

The wedge-shaped. often embellished
voussoir at the crown of an arch. serving to
lock the other voussoirs In place.

Answer 4

Keystone

Question 5

The exterior curve. surface. or boundary of

the visible face of an arch. Also called back

Answer 5

Extrados

Question 6

A decorative molding or band on the face of an

arch following the curve of the intrados

Answer 6

Archivolt

Question 7

The inner curve or surface of an arch forming the concave underside

Answer 7

Intrados

Question 8

height of an arch from the spring line to the highest point of the intrados

Answer 8

Rise

Question 9

the first voussoir resting on the impost of an arch

Answer 9

Springer

Question 10

The highest part or point of a convex construction, as an arch, vault or roadway

Answer 10

Crown

Question 11

Either side of an arch curving down from the crown to the Impost.

Answer 11

Vault

Question 12

The uppermost part of an

abutment, often In the form of a block, capital, or molding, from which an arch springs.

Answer 12

Impost

Question 13

The point at which an arch, vault, or dome

rises from Its support.

Answer 13

Spring

Question 14

The triangular-shaped, sometimes ornamented area between the extrados of
two adjoining arches, or between the left
or right extrados of an arch and the rectangular framework surrounding tit

Answer 14

Spandrel

Question 15

An archway having sides or jambs not at right angles with the face of Its abutments

Answer 15

Skew Arch

Question 16

Any of several concentric rings of masonry

forming an arch, esp. when each projects beyond the one below

Answer 16

Order

Question 17

A temporary’ framework for supporting a
masonry arch or vault during construction
until the work can support Itself.

Answer 17

Centering

Question 18

A board used as centering for a flat arch, slightly crowned to allow for settling of
the arch.

Answer 18

Camber Piece

Question 19

A crosspiece connecting the ribs in a centering. Also called a bolster

Answer 19

lag

Question 20

The part of a structure receiving and
supporting the thrust of an arch. vault. or
strut.

Answer 20

Abutment

Question 21

An arch having a horizontal Intrados with voussoirs radiating
from a center below. often built
with a slight camber to allow for
settnng. Also called

Answer 21

Flat Arch

Jack Arch

Question 22

A flat arch having voussolrs inclined to the

same angle on each side of the center.

Answer 22

French Arch

Question 23

An arch having a semicircular intrados.

Answer 23

Roman Arch

Question 24

A primitive form of arch consisting of two
stones laid diagonally to support each
other over an opening .

Answer 24

Triangular Arch

Question 25

A false arch constructed by corbelling courses from each side of an opening until they meet at a midpoint where a capstone Is laid to complete the work. The stepped reveals may be smoothed, but no arch action Is effected

Answer 25

Corbel Arch

Question 26

An arch having one Impost higher than the | other .

Answer 26

Rampant Arch

Question 27

An arch resting on imposts treated as | downward continuations of the archivolt

Answer 27

Stilted Arch

Question 28

A round arch resting on two large corbels | with curved taus.

Answer 28

Bell Arch

Question 29

An arch having an intrados that widens above the springng Before narrowing to a rounded crown. Also called a

Answer 29

Horseshoe Arch MoorIsh arch

Question 30

An arch having a cusped Intrados with three | round or pointed foils.

Answer 30

Trefoil Arch

Question 31

An arch struck from one or more | centers below the springing line.

Answer 31

Segmental Arch

Question 32

A stone or course of masonry having a sloping face against which the end of a segmental arch rests.

Answer 32

Skewback

Question 33

A three-centered arch having a crown with a radius much greater than that of the outer pair of curves. Also called

Answer 33

Basket Handle Arch Anse de Panier

Question 34

An arch having a rise of less than half the | span .

Answer 34

Surbased Arch

Question 35

A pointed arch having two centers and | radius less than the span

Answer 35

Drop Arch

Question 36

A pointed arch, each hunch of which Is a double curve with the concave side uppermost

Answer 36

Ogee Arch

Question 37

A pointed arch having two centers and | radii greater than the span.

Answer 37

Lancet Arch

Question 38

A pointed arch having two centers and radii | equal to the span.

Answer 38

Equilateral Arch

Question 39

A pointed arch, esp. one having two centers | and equal radii

Answer 39

Gothic Arch

Question 40

A four-centered arch having an inner pair of curves w/ a radius much greater than that of the outer pair

Answer 40

Tudor Arch