Parts of an Arch Diagram Quiz

Questions and Answers

What is a keystone?

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

What is a voussoir?

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

What is the extrados of an arch?

The exterior curve, surface, or boundary of the visible face of an arch.

What is an impost?

The uppermost part of an abutment, often in the form of a block, capital, or molding, from which an arch springs. Signup and view all the answers

What is the intrados of an arch?

The inner curve or surface of an arch forming the concave underside. Signup and view all the answers

What does rise refer to in an arch?

The height of an arch from the spring line to the highest point of the intrados. Signup and view all the answers

What is a clear span?

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What is an abutment?

The part of a structure receiving and supporting the thrust of an arch, vault, or strut. Signup and view all the answers

Study Notes

Arch Diagram Components

Keystone
- A wedge-shaped voussoir located at the crown of an arch
- Locks other voussoirs in place, essential for stability
Voussoir
- Wedge-shaped units forming a masonry arch or vault
- Sides converge towards the arch's center
Extrados
- The outer curve or surface of an arch's visible face
- This element provides structural support and aesthetic appeal
Impost
- The uppermost section of an abutment
- Often shaped as a block, capital, or molding from which the arch begins
Intrados
- The inner curve or surface of an arch
- Forms the concave underside that contributes to the arch's shape
Rise
- The vertical distance from the spring line to the apex of the intrados
- It is a measure of the arch's height and curvature
Clear Span
- The unobstructed distance between the supports of an arch
- Essential for determining the space available under the arch
Abutment
- Structural component that supports the thrust from an arch or vault
- Plays a crucial role in maintaining the integrity and stability of the arch structure

Description

Test your knowledge on the essential components of an arch with this quiz. Explore key terms like keystone, voussoir, and extrados. Perfect for architecture students or enthusiasts eager to learn the fundamentals of arch design.