Mural Painting: Scale and Permanent Surfaces

Correct answer: B. On the basis of surface and scale

Explanation: The main distinction between a mural and an ordinary paper painting is based primarily on the surface and scale of the artwork. A mural is designed for a relatively large, usually fixed surface such as a wall, ceiling, or architectural structure, so its composition must relate to the space and the viewers who encounter it there. A paper painting is generally made on a portable, smaller sheet, although its size can vary. Option B is correct because it identifies both relevant factors. Notes and rhythm concern music, while a writer’s name and language do not define whether a painting is a mural.

Correct answer: D. When it gives a visual message for the community on a public wall

Explanation: The governing concept is that public art is made accessible in a shared place and engages a community or general audience. A mural is a large-scale image painted or applied on a wall or other permanent surface. It becomes linked with public art when its location can be encountered by many people and its imagery, story, or message relates to communal experience, identity, memory, or concern. Option D is correct because it includes the public wall, the visual message, and the community audience. Options A, B, and C describe private, sound-only, or inaccessible conditions that do not establish public visual art.

Correct answer: A. Lower surface

Explanation: In perspective, the horizon line represents the viewer’s eye level. If an object is placed above that level, the viewer is looking upward toward it and may see its underside or lower surface. The upper surface is more likely to be visible when the object is below eye level. Visibility also depends on the viewing angle, but for the stated condition the lower surface is the appropriate answer. Therefore, option A is correct.