MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The side effect of scan conversion are |
| A. | aliasing |
| B. | anti aliasing |
| C. | both a & b |
| D. | none of these |
| Answer» B. anti aliasing | |
| 2. |
Bresanham circle algorithm uses the approach of |
| A. | midpoint |
| B. | point |
| C. | line |
| D. | none of these |
| Answer» B. point | |
| 3. |
A vector can be defined as |
| A. | intersection b/w two point position |
| B. | difference b/w two point position |
| C. | comparison b/w two point position |
| D. | none of these |
| Answer» C. comparison b/w two point position | |
| 4. |
A position in plane known as |
| A. | line |
| B. | point |
| C. | graphics |
| D. | none of these |
| Answer» C. graphics | |
| 5. |
A pixel may be defined as |
| A. | ?? smallest size object |
| B. | larger size object |
| C. | medium size object |
| D. | none of these |
| Answer» B. larger size object | |
| 6. |
A technique by which the vertical and /or horizontal scan frequency of video signal can be changed for different purpose and applications is called |
| A. | scan conversion |
| B. | polygon filling |
| C. | two dimensional graphics |
| D. | anti aliasing |
| Answer» B. polygon filling | |
| 7. |
The anti - aliasing technique which allows shift of 1/4,1/2 and 3/4 of a pixel diameter enabling a closer path of a line is ? |
| A. | pixel phasing |
| B. | filtering |
| C. | intensity compensation |
| D. | sampling technique |
| Answer» B. filtering | |
| 8. |
In bresenhan's algorithm error term is initialized to ? |
| A. | 0 |
| B. | 1 |
| C. | -0.5 |
| D. | none of above |
| Answer» B. 1 | |
| 9. |
Why a circle drawn on the screen appears to be elliptical ? |
| A. | it is due to the aspect ratio of monitor |
| B. | screen has rectangular shape |
| C. | our eyes are not at the same level on screen |
| D. | crt is completely spherical |
| Answer» B. screen has rectangular shape | |
| 10. |
In Bresenham's algorithm, while generating a circle , it is easy to generate? |
| A. | one octant first and other by successive reflection |
| B. | one octant first and other by successive rotation |
| C. | one octant first and other by successive translation |
| D. | all octants |
| Answer» B. one octant first and other by successive rotation | |
| 11. |
the desired characteristic of line is/are……. |
| A. | it should appear as a straight line |
| B. | it should start and end accurately |
| C. | it should be drawn rapidly |
| D. | all of above |
| Answer» E. | |
| 12. |
the line drawn using line drawing algorithm should be displayed with ……brightness. |
| A. | varying |
| B. | constant |
| C. | maximum |
| D. | minimum |
| Answer» C. maximum | |
| 13. |
The basic attributes of a straight line segment are |
| A. | type |
| B. | width |
| C. | color |
| D. | all of these |
| Answer» E. | |
| 14. |
the advantage of Bresenham's algorithm over conventional DDA algorithm is …….? |
| A. | no rounding operation |
| B. | use of integer addition and subtraction |
| C. | producing smooth appearance |
| D. | less number of iteration |
| Answer» C. producing smooth appearance | |
| 15. |
alorithm those use the outputs of the previous iteration, in the computation of outputs in the current iteration are called |
| A. | successive approximation |
| B. | incremental |
| C. | double-referencing |
| D. | scan-line |
| Answer» C. double-referencing | |
| 16. |
DDA line drawing algorithm for calculating pixel position is ……… the direct use of equation y = mx + b |
| A. | slower than |
| B. | faster than |
| C. | of equal speed to that of |
| D. | none of these |
| Answer» C. of equal speed to that of | |
| 17. |
floating point algorithm in DDA algorithm is…….. |
| A. | time efficient |
| B. | time consuming |
| C. | fast |
| D. | slow |
| Answer» C. fast | |
| 18. |
the end point accuracy of DDA line drawing algorithm is …….. |
| A. | good |
| B. | better |
| C. | best |
| D. | poor |
| Answer» E. | |
| 19. |
the DDA line drawing algorithm is …….. Dependent. |
| A. | orientation |
| B. | length |
| C. | end points |
| D. | display |
| Answer» B. length | |
| 20. |
when a line is to be drawn from (0,0) to (6,6) using DDA line drawing algorithm, the initial values for x and y are…….. |
| A. | 0.5, 0.5 |
| B. | (-0.5), (-0.5) |
| C. | 0, (-0.5) |
| D. | 0.5, 0 |
| Answer» C. 0, (-0.5) | |
| 21. |
when a line with end-points (20,10) and (30,18) is to be drawn using DDA line drawing algrithm, ………is chosen as one raster unit. |
| A. | ??x |
| B. | ??y |
| C. | a or b |
| D. | any of above |
| Answer» B. ??y | |
| 22. |
if a line is to be drawn from (0,0) to (4,6) using DDA line drawing algorithm, the third point to be plotted is ……. |
| A. | (1,2) |
| B. | (2,3) |
| C. | (3,2) |
| D. | (2,1) |
| Answer» B. (2,3) | |
| 23. |
sign function makes the DDA line drawing algorithm work in ………….quadrants. |
| A. | i and ii |
| B. | i and iii |
| C. | ii and iii |
| D. | all of above |
| Answer» E. | |
| 24. |
in DDA line drawing algorithm, Δx or Δy, whichever is ………, is chosen as one raster unit. |
| A. | 1 |
| B. | 0 |
| C. | smaller |
| D. | larger |
| Answer» E. | |
| 25. |
the slope of a straight line is given as…….. |
| A. | m= (??y / ??x) |
| B. | m= (??x / ??y) |
| C. | m= (x / y) |
| D. | m= (y / x) |
| Answer» B. m= (??x / ??y) | |
| 26. |
DDA stands for …………. |
| A. | data differential algorithm |
| B. | digital data algorithm |
| C. | digital differential analyzer |
| D. | digital differential algorithm |
| Answer» D. digital differential algorithm | |
| 27. |
the horizontal and vertical lines appear …….the 45 degree line. |
| A. | straight than |
| B. | longer than |
| C. | brighter than |
| D. | none of these |
| Answer» D. none of these | |
| 28. |
the brightness of the line is dependent on the ……of the line. |
| A. | orientation |
| B. | start and end points |
| C. | length |
| D. | none of these |
| Answer» B. start and end points | |
| 29. |
the width of 45 degree line drawn by line drawing algorithm is…………. |
| A. | constant |
| B. | not constant |
| C. | minimum |
| D. | maximum |
| Answer» C. minimum | |
| 30. |
the horizontal and vertical lines drawn by line drawing algorithm are…… |
| A. | less |
| B. | more |
| C. | constant |
| D. | none of these |
| Answer» D. none of these | |
| 31. |
the process of turning on the pixels for a line segment is called……. |
| A. | line generation |
| B. | vector generation |
| C. | pixel generation |
| D. | a or b |
| Answer» E. | |
| 32. |
the multiplication of a vector and the reciprocal of its length is equal to …….. |
| A. | zero |
| B. | can\t define |
| C. | one |
| D. | none of the above |
| Answer» D. none of the above | |
| 33. |
a line segment…………… |
| A. | extends forward |
| B. | extends backward |
| C. | ends at two points |
| D. | extends forever both forward and backward |
| Answer» D. extends forever both forward and backward | |
| 34. |
slope of the line joining the points(1,2) and (3,4) is……. |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» C. 2 | |
| 35. |
aliasing means…….. |
| A. | rendering effect |
| B. | shading effect |
| C. | staircase effect |
| D. | cueing effect |
| Answer» D. cueing effect | |
| 36. |
Which of the following algorithm can be used for circle generation? |
| A. | bresenham\s algorithm |
| B. | mid-point algorithm |
| C. | both a and b |
| D. | none of these |
| Answer» D. none of these | |
| 37. |
a line connecting the points (1,1) and (5,3) is to be drawn, using the DDA algorithm. Find the values of x and y increments. |
| A. | x-increment= 1; y-increment=1 |
| B. | x-increment= 0.5; y-increment=1 |
| C. | x-increment= 1; y-increment=0.5 |
| D. | none of these |
| Answer» D. none of these | |
| 38. |
pixel phasing is a technique for…….. |
| A. | shading |
| B. | anti-aliasing |
| C. | hidden line removal |
| D. | none of these |
| Answer» C. hidden line removal | |
| 39. |
pixel phasing is an anti-aliasing technique based on……… |
| A. | hardware |
| B. | software |
| C. | both hardware and software |
| D. | none of these |
| Answer» B. software | |
| 40. |
points P1(3.2, 7.8) and P2(3.7, 7.1) are both represented by pixel…….. |
| A. | (3,8) |
| B. | (4,7) |
| C. | (3,7) |
| D. | (4,8) |
| Answer» D. (4,8) | |
| 41. |
………. and ……... are the basic output primitives. |
| A. | points, line segments |
| B. | points, circle |
| C. | line segments, curves |
| D. | circles, polygons |
| Answer» B. points, circle | |
| 42. |
minimum…….. Points are required to represent a line |
| A. | two |
| B. | three |
| C. | four |
| D. | none of these |
| Answer» B. three | |
| 43. |
……… is the fundamental element of the picture representation. |
| A. | line segments |
| B. | polygon |
| C. | point |
| D. | circles |
| Answer» D. circles | |
| 44. |
the equation of a line in slope intercept form is given as…… |
| A. | x = my + b |
| B. | b= mx+y |
| C. | y=mx+b |
| D. | y+b=mx |
| Answer» D. y+b=mx | |
| 45. |
if two points used to specify a line are (x1, y1) and (x2, y2), then the equation of line is given as……….. |
| A. | x-x1/y-y1= y2-y1/x2-x1 |
| B. | y-y1/x-x1=y2-y1/x2-x1 |
| C. | a or b |
| D. | none of these |
| Answer» C. a or b | |
| 46. |
In _ transformation,we get Z(new)=Z(old). |
| A. | about xaxis |
| B. | about y axis |
| C. | about zaxis |
| D. | none of these |
| Answer» D. none of these | |
| 47. |
In perspective projection line of projection converge at a single point called ----- |
| A. | center of projection |
| B. | parallel |
| C. | perspective |
| D. | any |
| Answer» D. any | |
| 48. |
A---- projection produces realistic view but does not preserve relative proportion |
| A. | serial |
| B. | parallel |
| C. | perspective |
| D. | any |
| Answer» C. perspective | |
| 49. |
A ---- projection preserves relative proportion of object but does not produce the realistic view |
| A. | serial parallel |
| B. | serial, perspective |
| C. | parallel, perspective |
| D. | none of these |
| Answer» D. none of these | |
| 50. |
2 basic ways of projecting objects onto viewplane are --- and--- |
| A. | normal |
| B. | plane |
| C. | view |
| D. | reference |
| Answer» D. reference | |