Multiple choice questions and answers (MCQ) based on the Circle Drawing and Ellipse Drawing Algorithms in computer graphics with 4 choices, correct answer and explanation.
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What is the equation for a circle?What is the equation for a circle?
The answer is:
B. y^2 = r^2 – x^2


Which among the following is the correct equation for an ellipse?Which among the following is the correct equation for an ellipse?
The answer is:
C. rx^2y^2 = rx^2ry^2  ry^2x^2


Which of the following properties is followed by the ellipse?Which of the following properties is followed by the ellipse?
The answer is:
A. 4 – symmetry property


Which of the following are the methods to define a circle?Which of the following are the methods to define a circle?
The answer is:
C. Both a. and b.


"The midpoint algorithm is used for both circle drawing as well as ellipse drawing, but the procedure is different for both of them." Based upon the above statement, determine whether the following condition is true or false. "The circle follows 8  symmetry property whereas the elli"The midpoint algorithm is used for both circle drawing as well as ellipse drawing, but the procedure is different for both of them."
The answer is:
A. True


Why does a circle drawn on a computer screen look elliptical?Why does a circle drawn on a computer screen look elliptical?
The answer is:
C. It is due to the ratio aspect of computer monitor


With reference to properties of a circle, a circle is defined as a set of points that are all the given distance (xc ,yc)With reference to properties of a circle, a circle is defined as a set of points that are all the given distance (x_{c} ,y_{c}).
The answer is:
A. True


An ellipse consists of two axes: major and minor axes where the major axis is the longest diameter and minor axis is the shortest diameterAn ellipse consists of two axes: major and minor axes where the major axis is the longest diameter and minor axis is the shortest diameter.
The answer is:
A. True


During a circle creation using Bresenham's algorithm, it is usually simple to generate a circle?During a circle creation using Bresenham's algorithm, it is usually simple to generate a circle?
The answer is:
B. One octant first and other by successive reflection


In computer graphics, the midpoint ellipse algorithm is an ___ of drawing an ellipseIn computer graphics, the midpoint ellipse algorithm is an ___ of drawing an ellipse.
The answer is:
D. None of the above mentioned


Midpoint ellipse algorithm plots points of an ellipse on the first quadrant by dividing the quadrant into two regionsMidpoint ellipse algorithm plots points of an ellipse on the first quadrant by dividing the quadrant into two regions.
The answer is:
A. True


In the following figure, which one will be the appropriate pair of coordinates in the blanks?In the following figure, which one will be the appropriate pair of coordinates in the blanks?
The answer is:
A. (x, y)


The value of the decision parameter determines whether the midpoint lies ___ boundary and the then position of the midpoint help in drawing the ellipseThe value of the decision parameter determines whether the midpoint lies ___ boundary and the then position of the midpoint help in drawing the ellipse.
The answer is:
B. Inside, outside, or on the ellipse


Which of the following method/methods are used to get and set the location of a pixel, object or text in a desktop's active area?Which of the following method/methods are used to get and set the location of a pixel, object or text in a desktop's active area?
The answer is:
B. Basic positioning method


The ___ of the circle is often used by the midpoint circle drawing algorithm to produceThe ___ of the circle is often used by the midpoint circle drawing algorithm to produce.
The answer is:
A. Twoway symmetry


Let R be the circumference of a circle. The angle created by an arc of length R at the circle's middle is?Let R be the circumference of a circle. The angle created by an arc of length R at the circle's middle is?
The answer is:
A. 1 radian


To draw a perspective image of a globe, first enclose the circle in ___ then add pointing points, and so onTo draw a perspective image of a globe, first enclose the circle in ___ then add pointing points, and so on.
The answer is:
B. Rectangle


___ is defined as a group of points where the sum of the distances for all points is the same___ is defined as a group of points where the sum of the distances for all points is the same.
The answer is:
D. Ellipses


The orientation of a picture plane in relation to the source is unaffected by the perspective view's distanceThe orientation of a picture plane in relation to the source is unaffected by the perspective view's distance.
The answer is:
A. True


At any point (x, y) on the boundary of the circle with radius r satisfies the equation fcircle (x,y)=0. If the point is in the interior of the circle, the circle function is negative while if the point is outside the circle the, circle function is ___At any point (x, y) on the boundary of the circle with radius r satisfies the equation fcircle (x,y)=0. If the point is in the interior of the circle, the circle function is negative while if the point is outside the circle the, circle function is ___
The answer is:
A. Positive

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