Object observation

Correct answer: A. It helps establish correct height and placement on the paper

Explanation: The governing concept is bounding and proportion. The highest and lowest points define the object’s total vertical extent, allowing the artist to estimate its height and place it accurately within the paper margins. After these extremes are marked, intermediate widths and details can be related to the established scale. Option A is correct. These points do not darken a shadow, alter pencil hardness, or reveal colour by themselves.

Correct answer: B. Visual bounding

Explanation: The governing concept is visual bounding, or establishing a light envelope around the subject before developing its details. By marking approximate top, bottom, left, and right limits, the artist controls the object’s scale and placement and can compare its proportions within the paper. Therefore option B is correct. Colour mixing concerns pigment, smudging changes tones, and stippling creates texture; none of these processes sets the object’s overall size and position.

Correct answer: A. Angle of the main axis

Explanation: The governing concept is directional observation in sketching. The main axis is an imaginary line running through the object's dominant length, so its angle can be compared with a vertical or horizontal reference. If that angle is drawn correctly, the object's tilt and overall direction become believable. Texture, paper corners, and pencil grade may affect appearance, but they do not establish orientation.

Correct answer: B. From the central axis

Explanation: The governing principle is bilateral symmetry. First draw a light central axis through the vessel, then compare the distance from that axis to the corresponding left and right edges at several heights. Equal distances indicate balanced construction and unequal distances reveal an error. A horizon line controls viewing level, while a cast shadow and background do not measure the vessel's symmetry.

Correct answer: A. Establishing main proportion and placement

Explanation: The governing concept is construction through a bounding shape. An imaginary rectangle gives the object a preliminary height, width, and position on the page. The artist can compare the object's parts with these limits before refining the contour, which improves proportion and placement. It does not erase shadows, alter texture, or select colour, so option A is the only suitable answer.

Correct answer: B. Recompare its size with related parts

Explanation: The governing concept is comparative measurement and proportional correction. Before adding tone or detail, compare the oversized part with neighboring parts and with the object's total height or width. This reveals whether the error is real and shows how much the contour should be adjusted. Dark shading, thicker lines, or replacing the paper cannot correct a faulty proportion, so option B is correct.

Correct answer: B. Vertical reference line

Explanation: The governing concept is structural alignment in portrait observation. A lightly drawn vertical reference line can be checked against the nose and chin to see whether these features fall on the intended facial axis. For a tilted head, the axis should be adjusted to the head's direction rather than forced upright. Stippling, smudging, and cross-hatching describe mark-making or tonal methods, not alignment checking; therefore option B is correct.

Correct answer: A. Its three-dimensional structure

Explanation: The governing concept is construction from basic three-dimensional forms. A complex object can be analyzed as a combination of cubes, cylinders, spheres, or related solids; this helps the artist understand its volume, planes, and spatial position before drawing surface details. These forms do not reveal the object's actual colour, paper quality, or title, so option A is the only correct answer.

Correct answer: A. Its upper interior

Explanation: The governing concept is viewpoint and eye-level perspective. When a cup is below the viewer's eye level, the line of sight looks downward into it, so part of the upper interior and the inside of the elliptical rim can be visible. The base is not the defining visible area, and the hidden back cannot be seen in full. A circular rim remains present, so option A is correct.

Correct answer: A. Relationship between the body and supporting surface

Explanation: The governing concept is structural observation and weight distribution. A seated figure is defined initially by how the body contacts and rests on the chair, floor, or another supporting surface. Observing the contact points clarifies the pelvis, spine, leg angles, and overall balance, so option A is correct. Hair length, shoe texture, and background colour are secondary details and cannot establish the pose.

Correct answer: A. Main direction and weight

Explanation: The governing concept is observational construction: the foot must be treated as a connected form carrying weight. Observe the axis from the ankle through the instep toward the toes, the direction of the sole, and where the mass rests. Thus option A is correct because axis and weight explain the pose. Toenails are minor details, while a shoe name and paper size provide no information about the foot’s structure.

Correct answer: A. Volume and surface direction become clear

Explanation: The governing concept is form-following hatching. When strokes curve or travel in the same direction as a surface, they describe its turning, contour and movement, helping the viewer read volume. Option A is correct. Such lines do not flatten the object, create paper shine or disappear; their purpose is to reinforce the three-dimensional form.

Correct answer: A. They provide a stable basis for comparing tilt and alignment

Explanation: The governing concept is observational alignment. Horizontal and vertical reference lines act like a fixed coordinate frame, allowing the artist to compare an object's edges, axis, and tilt with reliable directions. If a top edge should be horizontal but slopes downward, or a central axis drifts from vertical, the error becomes visible. Option A is correct; the other choices describe effects unrelated to checking direction.

Correct answer: B. They will have been placed too close together

Explanation: The governing concept is negative-space measurement. The empty shape between objects is not merely unused paper; its width and angles help determine the placement of the surrounding forms. If that space is drawn too narrow, the boundaries on either side must move inward, making the objects appear too close together. Option B is correct. Colour, texture, and apparent distance do not change automatically as a direct result of narrowing the negative space.

Correct answer: B. Internal angles and proportions may be incorrect

Explanation: The governing concept is proportional and relational observation. Extreme points establish the outer limits, but the object is also defined by internal angles, planes, divisions, alignments, and proportional relationships. If those relationships are misplaced, the silhouette may contain the correct overall width and height while the object still looks distorted. Therefore option B is correct; the other choices are irrelevant or falsely absolute.

Correct answer: A. Overall placement and proportion are largely correct

Explanation: The governing concept is negative-space checking. The shapes of the empty areas surrounding a figure are created by the figure’s placement, width, height, and major directional relationships. If those spaces are accurate, the overall position and proportion are probably sound, even though the contour needs refinement. Option A is correct; a slightly uneven contour does not prove total failure, and the other claims are unrelated.

Correct answer: B. Comparative measurement

Explanation: Comparative measurement is an observation-based sketching method used to compare dimensions and establish proportion. The artist may hold a pencil at arm’s length, mark the apparent height, and compare it with the apparent width or with another part of the object. This helps transfer the correct ratio before adding details. Blending and stippling describe tone-making methods, while line weight concerns the thickness or emphasis of a line, so comparative measurement is the only suitable answer.

Correct answer: B. To identify proportion and balance errors from a fresh viewpoint

Explanation: The governing concept is observational self-checking. Viewing a sketch from farther away changes the overall visual impression, while a mirror reverses the familiar image; both methods help reveal uneven proportions, tilted axes, and balance problems that the eye may ignore during close work. Option B is correct. The other choices concern paper, tools, or colour and do not explain this checking method.

Correct answer: A. To align the pencil with the subject's main angle

Explanation: In observational drawing, a pencil can be used as a simple sighting tool. The artist rotates it until its edge or axis matches the subject’s visible tilt, then transfers that angle to the drawing. Option A is correct because the procedure compares directions and slopes. It does not alter the pencil point, change the light, or measure the height of the paper.

Correct answer: A. Actual turns, proportions and curves are recorded

Explanation: Slow observation allows the artist to follow the subject’s actual turns, angles, proportions, and curves instead of relying on a simplified memory symbol. This makes option A correct because direct looking improves the accuracy of the contour. It does not control how much paper remains white, make every line equally thick, or remove the need to study light and shadow when those are relevant.

Correct answer: B. Proportion

Explanation: Proportion is the relationship between the measurements of parts or dimensions of an object. Comparing height with width helps the artist judge whether the drawing is too narrow, too broad, or suitably balanced in relation to the reference. Option B is correct. Texture concerns surface quality, line weight concerns thickness or darkness, and colour balance concerns relationships among colours, not dimensions.

Correct answer: D. At the subject

Explanation: The governing concept of blind contour is concentrated observation. The artist keeps the eyes on the subject and slowly follows its visible edges, while the drawing hand moves without repeatedly checking the paper. This strengthens visual attention and hand–eye coordination, so option D is correct. Looking at the eraser, paper edge, or pencil point shifts attention away from the form and defeats the main purpose of the exercise.

Correct answer: C. Their visual angle decreases as distance increases

Explanation: An object of fixed physical size subtends a smaller visual angle at the eye when its distance increases. Because it occupies less of the viewer's field of vision, it is represented as smaller in a perspective drawing. Option C gives the underlying reason; option A states only the visible result. The objects do not actually shrink, and light does not reduce their physical or apparent size in this perspective rule.

Correct answer: C. The eye level is near the upper rim

Explanation: A circular rim is seen as an ellipse in a drawing. When the viewer’s eye level is close to the rim, the visible height of that ellipse becomes small, making the top oval appear flat. Therefore, option C is correct. Distance or weight does not determine the oval’s openness, and the direction of light affects shading rather than the geometric shape of the rim.

Correct answer: D. When the cup is well below eye level

Explanation: The circular opening of a cup appears as an ellipse because of viewpoint. When the cup is below the observer’s eye level, more of its inside and upper surface can be seen, so the ellipse becomes taller and more open. Option D is correct. At eye level the oval is flatter; distance and darker outlines do not change the geometric openness in the same way.