WorksheetsBố Pơ Sờ Pếc Típ
Total questions: 65
Worksheet time: 33mins
In the perspective of the vertical picture plane, the perspective of a circle placed parallel to the ground plane and at the eye level is shown as:
a. A circle
b. An ellipse
c. A horizontal line
d. All three cases are wrong
In reality, the two points A and B are equal to the height of the observer's eye level, if A is located closer to the observer than B, in the perspective of the vertical picture plane, we have:
a. The point perspective A is higher than the point of perspective B
b. The point perspective A is lower than the point of perspective B
c. The point A perspective is as high as the point of perspective B
d. It depends on whether the perspective is 1 gathering point or 2 gathering points
In reality, two points A and B are equal in height and both are higher than the observer's eye-level, if the distance from A to the picture plane is smaller than the distance from B to the picture plane. (condition is that the vertical picture plane is between the observer and points A, B), in the perspective of the vertical picture plane, we have:
a. The point perspective A is higher than the point of perspective B
b. The point perspective A is lower than the point of perspective B
c. The point A perspective is as high as the point of perspective B
d. It depends on whether the perspective is 1 gathering point or 2 gathering points
In reality, two points A and B are equal in height and both are lower than the observer's eye level, if the distance from A to the picture plane is smaller than the distance from B to the picture plane. (condition is that the vertical picture plane is between the observer and points A, B), we have:
a. The point perspective A is higher than the point of perspective B
b. The point perspective A is lower than the point of perspective B
c. The point A perspective is as high as the point of perspective B
d. It depends on whether the perspective is 1 gathering point or 2 gathering points
On the perspective of an inclined picture plane, what is the perspective of two straight lines parallel to the ground plane but not parallel to the picture plane?
a. Converge at a point on eye-level
b. Duplicate
c. There is no common point
d. Cut at a point above eye level
On the perspective of an inclined picture plane, where is the vanishing point of two straight lines that parallel to both the picture plane and the ground plane?
a. Converge at a point on eye-level
b. Duplicate
c. There is no vanishing point
d. Cut at a point above eye level
In perspective projection, what is the picture plane used for?
a. On the picture plane, we draw the perspective projection of the object
b. On the picture plane, we place the object to draw perspective
c. The picture plane is used for the observer to stand up
What perspective projection systems are there?
a. Inclined picture plane and vertical picture plane
b. Only Inclined picture plane
c. The only vertical picture plane
What are the characteristics of the vertical picture plane?
a. The picture plane is inclined at an angle greater than or less than 90 degrees to the ground plane
b. The picture plane is parallel to the ground plane
c. The picture plane coincides with the ground plane
d. The picture plane is perpendicular to the ground plane
In which situation, the perspective of the inclined picture plane is used?
a. When the observer looks straight, the axis of the cone of vision is parallel to the ground
b. When the observer looks up, the axis of the cone of vision looks upwards.
c. When the observer looks down, the axis of the cone of vision looks downwards
d. Both cases when the observer looks up or down, the axis of the cone of vision looks upwards or downwards.
System of perspective projection is constructed from which projection below?
a. Parallel projection
b. Perpendicular projection
c. Perspective projection
d. All of them
According to the cone of vision, the best observation amplitude of the viewer is:
a. 15 to 30 degrees
b. 30 to 60 degrees
c. 45 to 60 degrees
d. 0 to 180 degrees
In which situation the perspective of the vertical picture plane is used:
a. When the observer looks straight, the axis of the cone of vision is parallel to the ground
b. When the observer looks up, the axis of the cone of vision looks upwards
c. When the observer looks down, the axis of the cone of vision looks downwards
d. Both options b and c
What is the characteristic of the inclined picture plane?
a. The picture plane is parallel to the ground plane
b. The picture plane coincides with the ground plane
c. The picture plane is perpendicular to the ground plane
d. The picture plane is not perpendicular to the ground plane
When drawing shadows, how many light sources are there?
a. Two types: Sun and light bulb
b. Three types: Sun, light bulb, moon
c. Four types: Sun, moon, indoor light bulb, outdoor light bulb
How does the position of the central visual ray compare to the picture plane?
a. The central visual ray is parallel to the picture plane
b. The central visual ray is inclined to the picture plane
c. The central visual ray is on the picture plane
d. The central visual ray is perpendicular to the picture plane
What is the central visual ray?
a. A ray of light from a light source to the picture plane
b. The axis of the cone of vision
c. A line from the viewer's eyes to an object
d. A ray of light from a light source to an object
According to the perspective of the vertical picture plane, the perspective of a square which parallels to the picture plane is a:
a. Rectangle
b. Trapezoid
c. Parallelogram
d. Square
What is the ground plane?
a. A horizontal plane that passes through the eye of the observer
b. A vertical plane on which objects need to represent perspective projection is placed
c. A horizontal plane on which objects need to represent perspective projection is placed
d. Is the vertical picture plane passing through the eye of the observer
In the perspective of the vertical picture plane, the distance from the horizon line to the bottom of the picture plane is determined:
a. By the distance from the point of view to the picture plane
b. By the distance from the point of view to the object
c. By the distance from the point of view to the ground plane
On the picture plane, what is the position of the horizon line compared to the bottom of the picture plane
a. Parallel to the bottom of the picture plane
b. Perpendicular to the bottom of the picture plane
c. Inclined less than 90 degrees from the bottom line of the picture plane
d. Coincides with the bottom of the picture plane
In the perspective of the vertical picture plane, what is the perspective projection of a circle parallel to the picture plane?
a. Ellipse
b. Any curve
c. Parabolic
d. Circle
What is the horizon line?
a. Is the perspective of the endless line of the ground plane
b. Is the perspective of the line parallel to the picture plane
c. Is the intersection of the ground plane with the picture plane
d. Is the perspective of the line parallel to the ground plane
What is the characteristic of the perspective projection of two lines that are parallel but not parallel to the picture plane?
a. There is a common vanishing point
b. There are two vanishing points
c. There are countless vanishing points
d. There is no convergence
Where is the vanishing point of the perspective projection of the lines that parallel to the picture plane?
a. The vanishing point is on the horizon line
b. The vanishing point is at the bottom of the picture plane
c. No vanishing point (vanishing point is extremely far away)
d. Any vanishing point on the picture plane
What is the perspective projection of the circle (not parallel to the picture plane)?
a. Is circle
b. Is the ellipse
c. Is any curve
In the perspective of the inclined picture plane, the perspective projection of the lines perpendicular to the ground plane has any of the following properties:
a. There is a common vanishing point
b. There are two vanishing points
c. There are countless vanishing points
d. There is no convergence
What is the horizontal plane through the eyes?
a. The plane passing through the eye of the observer and parallel to the picture plane
b. The plane passing through the eye of the observer and perpendicular to the bottom of the picture plane
c. The plane passing through the observer's eye and parallel to the ground plane
d. The plane passing through the eye of the observer and perpendicular to the central visual ray
What is the vanishing point of the straight lines?
a. The perspective of the midpoint of line
b. The perspective of the endless point of line
c. The perspective of any point on a straight line
d. The intersection of the straight line and the picture plane
In the perspective of the vertical picture plane, where is the convergence of lines that are perpendicular to the picture plane?
a. The vanishing point is at the bottom of the picture plane
b. The vanishing point is on the horizon line
c. The vanishing point is at the intersection of the central visual ray and the picture plane
d. The vanishing point is in the middle of the picture plane
Given a point of view W and a line AB, how do we find the vanishing point of the line AB?
a. From the point of view W, draws the line parallel to the ground plane, cutting the picture plane where it is the vanishing point of AB
b. From the point of view W, draws the line parallel to AB, cutting the picture plane where it is the vanishing point of AB
c. From the point of view W, draws the line parallel to the picture plane, cutting the ground plane where it is the vanishing point of AB
d. From the point of view W, draws the line which is perpendicular to the picture plane, cutting the picture plane where it is the vanishing point of AB
What is the shadow of a line on a picture plane?
a. Is a circle
b. Is an ellipse
c. Is a straight line
In the perspective of the inclined picture plane with a top-down view, where is the vanishing point of the lines which are perpendicular to the ground plane?
a. Located above the horizon line
b. Located on the horizon line
c. Located below the horizon line
d. Located at the bottom of the picture plane
In the perspective of a vertical picture plane, what is the perspective of a square that is perpendicular to the ground plane and the picture plane. The square is not on the plane that through viewpoint and perpendicular to the picture plane?
a. Square
b. Trapezoid
c. A straight line
d. Parallelogram
When drawing shadows, what is the light source considered?
a. a straight line
b. a circle
c. an infinity point
d. a point
Which visual law relates to perspective projection?
a. The farther the distance from the object to the observer is, the smaller the object is
b. The further away the object becomes, the more faint and unclear it will be
c. The human eye has the ability to self-regulate to focus on seeing an object more clearly
d. All above
Choose the right concept.
a. The picture plane is always perpendicular to the central visual ray
b. The horizon line is the horizontal straight line of the ground plane
c. The vanishing point is always on the eye level
d. The horizon line is not a line of eye level or a vanishing line
Lines that are parallel to the ground plane have the vanishing points at:
a. The bottom line of the picture plane
b. Horizon line
c. Central visual ray
d. None of them
When the picture plane is vertical, all lines which in reality are perpendicular to Ground Plane will converge toward...
a. a vanishing point
b. an endless vanishing point
c. two vanishing points
d. any vanishing point
When picture plane is inclined, all lines which in reality are perpendicular to the ground plane will converge toward...
a. a vanishing point
b. an endless vanishing point
c. two vanishing points
d. any vanishing point
The horizontal plane passing through the point of vision is called:
a. The picture plane
b. Plane of the eye-level
c. The ground plane
d. The projection planem
What are the key elements for a perspective projection system?
a. Point of vision, the ground plane, the picture plane
b. Plane of the eye level, the horizon line, eyes of observer
c. The vanishing point, the ground plane, the picture plane
d. All of them
In perspective projection, the eye level plane cuts the picture plane in a straight line and that line is called:
a. The bottom line of picture plane
b. The ground line
c. The horizon line
d. The vanishing line
The shadow of an object that falls on a ground plane or on other objects is called:
a. Shade
b. Shadows of objects
c. Shade of the dark
The shade of an object is obtained when:
a. Place the object in front of a light source
b. Place the object in the dark area
c. Self-illuminating the object
d. Objects have the perspective projection
The light ray is understood as:
a. Light comes from the sun
b. an infinite point
c. a finite point
d. Light is emitted from the light source in straight lines
The shadow of a point down onto the plane is defined:
a. The intersection of light rays passing through that point and the plane of shadow
b. The intersection of light rays crossing the horizon line
c. A line connecting the light rays to that point
d. Undefined
The observer is on a mountain top or descending in a parachute, the horizon line always appears on a level with his eyes. Is it right or wrong?
a. Right
b. Wrong
If the observer lies on the ground, in this case, the amount of ground area leading to the horizon line seems even less than the skyspace that is from the horizon line leading to the upper skyline. So what happens to the horizon line?
a. The horizon line appears at the observer's eye level
b. The horizon line does not coincide with the observer's eye level
c. The horizon line is lower than the observer's eye level
d. None of them is correct
When the observer is on flat ground, the amount of ground before him seems less than the amount seen from the higher level, so what happens to the horizon line in this case?
a. The horizon line does not coincide with the observer's eye level
b. The horizon line appears at the observer's eye level
c. None of them is correct
d. The horizon line is lower than the observer's eye level
What are the principal determinants of how things appear in real life and in perspective drawing?
a. Viewpoint and cone of vision
b. Observer's distance from a subject
c. The apparent direction of the subject's lines
d. All are correct
In which case that the horizon line (eye level) also is called vanishing line?
a. All lines which in reality are perpendicular to picture plane will converge toward a vanishing point on the horizon line (eye level)
b. All lines which in reality are perpendicular to Ground Plane will converge toward a vanishing point on the horizon line (eye level)
c. All lines which in reality are parallel to the ground plane will converge toward a vanishing point on the horizon line (eye level)
d. All lines which in reality are parallel to picture plane will converge toward a vanishing point on the horizon line (eye level)
Eye-level is the line that is ... to the eyes of observer.
a. Upright
b. Parallel
c. Horizontal
d. All of them
All lines which in reality are parallel to the ground plane will ... on the horizon line
a. Converge to one point
b. Converge to two points
c. Converge to three points
d. Converge to four points
... is the intersection of the ground plane with the picture plane:
a. Vanishing point
b. The bottom line of the picture plane (the ground line)
c. The horizon line
In perspective projection system, the picture plane is:
a. The horizontal plane where the object is placed
b. A plane where the object is placed
c. The plane used to draw a perspective projection of an object
d. The horizontal plane passes through the point of vision
The horizon line is a crossroads between:
a. Eye-level plane and picture plane
b. Ground plane and picture plane
c. Ground plane and eye level plane
d. Projection plane and ground plane
According to the position of the picture plane that is vertical and inclined to the ground plane, how many types of perspective projection systems are there?
a. 2
b. 3
c. 4
d. 5
Which one(s) is created by perspective projection?
a. One-point perspective projection
b. Two-point perspective projection
c. Axonometric projection
d. Both A and B
The horizontal plane on which objects are placed is called:
a. Picture plane
b. Ground plane
c. The horizon line
d. Eye-level plane
The eye-level plane cuts the picture plane with a straight line called:
a. Vanishing line
b. Ground plane
c. The horizon line
d. A and C are both correct
All lines parallel or not parallel to the picture plane all converge at a vanishing point.
a. Correct
b. Incorrect
In vertical picture plane, lines that are parallel to the picture plane while perpendicular to the ground plane, are still parallel and do not converge to a vanishing point
a. Correct
b. Incorrect
The parallel lines converge to a point on the vanishing line called the vanishing point.
a. Correct
b. Incorrect
In inclined picture plane, lines that perpendicular to the ground plane, are still parallel and do not converge to a vanishing point.
a. Correct
b. Incorrect
