Line

Correct answer: A. Contour line

Explanation: The governing concept is the use of line to describe form. A contour line follows or indicates the outer boundary of an object, allowing the viewer to recognise its silhouette and shape. Therefore, option A is correct. A direction line suggests movement or orientation, a centre line marks an axis, and a shadow line would relate to darkness or shading rather than the actual outer edge.

Correct answer: A. Contour line

Explanation: A contour line follows and defines the visible outer boundary of an object, making option A correct. It helps communicate the object’s shape and silhouette, although artists may vary its darkness instead of outlining every edge equally. A horizon line indicates eye level, a centre line helps establish alignment, and an action line suggests movement or pose.

Correct answer: C. Vertical direction

Explanation: The governing concept is line direction. A straight vertical line extends upward and downward, with its main orientation from top to bottom or bottom to top. Therefore, it represents the vertical direction, so option C is correct. A horizontal line runs from left to right, a diagonal line slopes across the page, and a curved line bends rather than following one straight direction.

Correct answer: A. An effect of depth, visual emphasis and distance

Explanation: Changing line thickness is called line weight. Thick lines can make a form appear nearer, heavier, or more important, while thin lines can suggest distance or delicate detail. Therefore, line weight creates depth, distance, and visual emphasis. It does not change the thickness of the paper. Exam tip: Link thick lines with emphasis and thin lines with distance or delicacy.

Correct answer: A. Horizon line

Explanation: In a landscape drawing, the imaginary line in the distance where the sky and land appear to meet is called the horizon line. A vertical line shows an up-and-down direction, so it is not correct here. Exam tip: Identify the horizon line as the line around the viewer’s eye level in a landscape.

Correct answer: A. To define the shapes and boundaries of objects

Explanation: An outline shows the outer edges of objects, making their shapes and boundaries clear. It helps the viewer distinguish one form from another in a drawing. Mixing colours is part of colouring or shading, not the main purpose of an outline. Exam tip: remember that an outline is the line that marks the outer boundary of a shape.

Correct answer: A. To define shapes, edges and forms

Explanation: Line is a basic element of drawing. Its main use is to define the outlines, edges, and forms of objects. Lines can also suggest direction, movement, and surface quality. Drying colours or cutting paper are not functions of line in drawing. Exam tip: An outline line helps identify an object’s shape and edges.