Colour filling and blending

The governing concept is paint consistency, or the balance between pigment and liquid. For a smooth fill, the paint should be balanced: fluid enough to spread evenly but thick enough to remain within the outline and cover the surface. Therefore, option A is correct. Extremely dry paint may drag and leave gaps, while very watery paint can run, pool, or create streaks. Lumpy paint produces an uneven texture. Testing a small amount on the palette helps adjust the consistency before applying it.

The lightness or darkness of a colour is called its colour value. A lighter value can suggest light, while a darker value can suggest shadow and depth. Therefore, the light and dark forms of the same colour are colour values, making option A correct. Shapes, lines and proportions describe other visual elements, not changes in colour lightness.

Blending aims to create a gradual transition rather than a sharp dividing line. At the meeting point of two colours, gentle and controlled strokes help move one colour into the other and soften the boundary. Thus option A is correct. A dark line creates an unwanted hard edge, leaving the area blank interrupts the blend, and cutting the paper is unrelated to painting.

When a water-based colour spills beyond its boundary, a clean brush that is only slightly damp can lift the excess pigment while it is still wet. Blotting the brush first prevents added water from spreading the stain. Therefore option A is correct. Adding more colour enlarges the spill, folding can damage the paper, and a thick black line hides rather than corrects the mistake.

A trial stroke on scrap paper shows whether the brush carries too much or too little water and whether the paint has the desired consistency. It also reveals the approximate width and smoothness of the mark before the actual surface is used. Therefore option A is correct. The other choices do not describe any purpose of testing a brush before colouring.

In the wet-on-wet method, the first layer remains moist when the second colour is applied. Moist paint allows pigments to move and merge, producing a soft spread and a gentle transition rather than a sharply defined edge. Thus option A is correct. Carving, a dry line and a paper crease are not effects produced by this painting method.

Applying a new layer after the earlier layer has dried is a controlled layering method. The dry surface prevents the fresh colour from mixing and spreading widely, so edges, shapes and separate colour areas remain clearer. Therefore option A is correct. Drying does not erase paint, make paper transparent or automatically harden the brush.

Brush pressure changes how the bristles spread and how much paint is released. Excessive pressure can flatten or separate the bristles, disturb the intended direction and leave an uneven, patchy stroke; it may also damage a delicate paper surface. Thus option A is correct. Pressure does not make colour transparent, dry the paper or turn the pigment white.

A smooth blend is created by reducing the difference between neighbouring colours through intermediate values or transitional tones. These middle steps guide the eye gradually from one colour or shade to the next. Therefore option A is correct. A black line creates a harsh boundary, leaving the area white interrupts the transition, and scratching removes or damages the painted surface rather than blending it.

The governing concept is controlled colour application. Near an edge, slow and steady brush movement allows the artist to stop accurately at the boundary and prevents accidental overpainting. Option A is correct because it protects the outline and produces a neat fill. Moving very quickly reduces control, closing the eyes is unsafe and ineffective, and adding excess water may cause spreading, stains, or paper damage rather than accuracy.

The governing principle is maintaining pigment purity during colour mixing. Before preparing a new mixture, the artist should clean or choose an unused palette area so that remnants of an earlier colour do not contaminate it. Option A is correct because a clean surface preserves the intended hue. Dust introduces unwanted particles, dried paint cannot be mixed smoothly, and glue damages the brush and changes the paint’s consistency.

The governing concept is colour purity in subtractive mixing. Every additional pigment absorbs some wavelengths of light, so combining too many pigments can produce a dull, brownish or muddy result instead of a clear hue. Option A is correct because excessive mixing reduces brilliance. A clean brush, a clean palette and a small measured amount of paint generally improve control and do not themselves cause muddiness.

The governing concept is controlled blending without contamination. Clean water helps dilute and spread pigment predictably, while dirty water carries leftover colour into the next area and can make a mixture dull or unexpectedly tinted. Option A is correct because it helps preserve colour clarity and accuracy. Water does not thicken paper, shorten bristles, or automatically make a painting shiny; those effects are unrelated to rinsing water.

The governing concept is value modelling: differences between light and dark help the eye read a flat shape as three-dimensional. If the imagined light source is placed on one side, that side receives a lighter value and the opposite side becomes darker, with a gradual transition between them. Option A is correct. A repeated black line, only white paint, or no colour cannot adequately show rounded volume.

The governing concept is a gradual colour transition. Blending softens the meeting area between two adjacent colours so that yellow changes progressively into orange instead of ending in a hard boundary. Option A is correct because gentle, overlapping strokes or a suitably damp brush can merge the values. Stippling creates a dotted texture, outlining defines edges, and paper cutting changes the surface rather than producing a painted transition.

The governing concept is complete and uniform coverage. When brush strokes are uneven, separated, or applied with inconsistent pressure, some parts of the paper may be missed, leaving visible white patches. Option A is correct because incomplete stroke coverage directly produces those gaps. Even pressure, suitable paint consistency, and correct use of a wide brush normally support a smoother fill, although poor handling could still affect the result.

The governing concept is continuous coverage. Each new stroke should slightly overlap the edge of the previous one, creating a connected layer of paint and preventing narrow uncoloured gaps. Option A is correct because controlled overlap produces an even surface. Strokes placed far apart leave paper visible, an opposite direction is not itself a placement rule, and strokes outside the paper cannot fill the intended area. Consistent pressure also improves the result.

The governing colour-theory concept is value change within a hue. A shade is a darker form of a colour, commonly created by adding a controlled amount of black. Option A is correct because it names this darkening process. A tint is the lighter form made with white, drawing a line is a mark-making action, and cutting paper is a craft process unrelated to changing colour value. Too much black should be avoided because it can overpower the hue.

The governing concept is colour blending, in which one colour changes gradually into another without a sudden boundary. This smooth movement is called a colour transition or gradation. Therefore, option A is correct. Line division concerns separating lines, shape cutting concerns altering forms, and paper decoration is a broader activity rather than a specific colour technique.

The governing skill is controlled colour application. A steady hand helps the artist guide the brush accurately, especially near an outline, so the paint stays within the intended boundary and the edge remains neat. Thus option A is correct. Hand steadiness cannot make paint dry instantly, increase paper thickness, or change the colour of the brush.

The governing principle is stability during colour application. Paper kept flat and steady gives the brush a firm surface and allows water and pigment to be distributed more evenly. Therefore, option A is correct. Folded paper creates unwanted angles, hanging paper moves while painting, and a wet supporting surface can disturb the paper and spread the colour unpredictably.

The governing concept is controlling the water-to-pigment ratio. After washing, the brush should be lightly wiped so excess water does not dilute the next colour, cause unwanted drips, or make the stroke weak. Thus option A is correct. Putting the brush in soil, cutting its bristles, or bending it damages or contaminates the tool and does not prepare it for a new colour.

The governing concept is avoiding overworking a wet painted surface. Repeated brushing can disturb the paper fibres, lift the still-wet pigment, and roughen or damage the surface. Hence option A is correct. Extra brushing does not purify the colour or strengthen the paper, and a drawing will not automatically become shiny because the same wet area is rubbed repeatedly.

The governing concept is using colour values to represent light, shade, and form. A leaf appears more natural when lighter and darker greens are blended, with variation around the veins and edges. Therefore, option A is correct. One flat black tone, no colour, or isolated red dots does not communicate the leaf’s green surface, volume, or natural light effect.

The governing concept of blending is a smooth, gradual transition between adjoining colours. If a hard, clearly visible line remains between them, the colours have not been merged smoothly, so the blending is incomplete. Option A is correct. Complete blending would soften the meeting area; “invisible” describes visibility rather than quality, and “printed” is unrelated to the painting process.