McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electronics and Communication Engineering .
| 401. |
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» D. all of above | |
| 402. |
the desired characteristic of line is/are……. |
| A. | it should start and end accurately |
| B. | it should be displayed with constant brightness |
| C. | it should be drawn rapidly |
| D. | all of above |
| Answer» D. all of above | |
| 403. |
the horizontal and vertical lines drawn by line drawing algorithm are…… |
| A. | straight |
| B. | curved |
| C. | zig-zag |
| D. | none of these |
| Answer» A. straight | |
| 404. |
A line drawn in the background color is |
| A. | visible |
| B. | invisible |
| C. | visible or invisible |
| D. | none |
| Answer» B. invisible | |
| 405. |
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» A. one octant first and other by successive reflection | |
| 406. |
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» A. it is due to the aspect ratio of monitor | |
| 407. |
In bresenhan's algorithm error term is initialized to ? |
| A. | 0 |
| B. | 1 |
| C. | -0.5 |
| D. | none of above |
| Answer» A. 0 | |
| 408. |
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» A. pixel phasing | |
| 409. |
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» A. scan conversion | |
| 410. |
A pixel may be defined as |
| A. | ?? smallest size object |
| B. | larger size object |
| C. | medium size object |
| D. | none of these |
| Answer» A. ?? smallest size object | |
| 411. |
A position in plane known as |
| A. | line |
| B. | point |
| C. | graphics |
| D. | none of these |
| Answer» B. point | |
| 412. |
A line can be represented by |
| A. | one point |
| B. | two points |
| C. | three points |
| D. | four points |
| Answer» B. two points | |
| 413. |
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» B. difference b/w two point position | |
| 414. |
Bresanham circle algorithm uses the approach of |
| A. | midpoint |
| B. | point |
| C. | line |
| D. | none of these |
| Answer» A. midpoint | |
| 415. |
The side effect of scan conversion are |
| A. | aliasing |
| B. | anti aliasing |
| C. | both a & b |
| D. | none of these |
| Answer» A. aliasing | |
| 416. |
The process of reducing aliasing is called |
| A. | resolution |
| B. | anti aliasing |
| C. | sampling |
| D. | none of these |
| Answer» B. anti aliasing | |
| 417. |
Two basic technique for anti aliasing in ray tracing algorithm are |
| A. | pixel sampling and super sampling |
| B. | adaptive sampling and super sampling |
| C. | pixel sampling and super sampling |
| D. | none of these |
| Answer» B. adaptive sampling and super sampling | |
| 418. |
Pixel mask means |
| A. | a string containing only 1;s |
| B. | a string containing only 0’s |
| C. | a string containing 1 and 0 |
| D. | a string containing 0 and 0 |
| Answer» C. a string containing 1 and 0 | |
| 419. |
A heavy line on a video monitor could be displayed as |
| A. | adjacent perpendicular lines |
| B. | adjacent parallel lines |
| C. | both a and b |
| D. | neither a nor b |
| Answer» B. adjacent parallel lines | |
| 420. |
To set the line-width attribute the following command is used. |
| A. | setlinewidthscalefactor (lw) |
| B. | setlinewidth() |
| C. | setlinewidthscalefacto (lw) |
| D. | setlinewidthscalefactor (lw) |
| Answer» D. setlinewidthscalefactor (lw) | |
| 421. |
The parameter to “setLineWidthScaleFactor (lw) “function specifies? |
| A. | standard width |
| B. | relative width of the line |
| C. | thickness of the line |
| D. | all the above |
| Answer» B. relative width of the line | |
| 422. |
Higher persistence phosphorus needs _________ refresh rate |
| A. | lower |
| B. | higher |
| C. | medium |
| D. | none of these |
| Answer» A. lower | |
| 423. |
Higher persistence phosphorus is used in |
| A. | animation |
| B. | simple object |
| C. | higher complex object |
| D. | all of these |
| Answer» C. higher complex object | |
| 424. |
Phosphorus are of various types depending on |
| A. | color |
| B. | persistence |
| C. | both a & b |
| D. | none of these |
| Answer» C. both a & b | |
| 425. |
if one octant of the circle is generated, to complete the generation of full circle, how many reflections are required? |
| A. | 1 |
| B. | 2 |
| C. | 4 |
| D. | 8 |
| Answer» D. 8 | |
| 426. |
the best line drawing algorithm among all possible line drawing algorithm is…………. |
| A. | dda |
| B. | algorithm which uses direct equation of line |
| C. | bresenham\s algorithm |
| D. | none of them |
| Answer» C. bresenham\s algorithm | |
| 427. |
if any two point Pi(xi, yi) is considered, then it lies on the line on the line segment y = mx+b if……… |
| A. | yi.mxi + b |
| B. | min (x1, x2) <= xi <= max (x1, x2) |
| C. | min (y1, y2) <= y <= max (y1, y2) |
| D. | all of above |
| Answer» D. all of above | |
| 428. |
if a line segment between (x1, y1) and (x2, y2) is represented in parametric form with a parameter u, then the expression for can be given as…….. |
| A. | x= x1-(x2-x1)u |
| B. | x= x1+(x2-x1)u |
| C. | x= x1+(x1-u)x2 |
| D. | x= x1+(u-x1)x2 |
| Answer» B. x= x1+(x2-x1)u | |
| 429. |
a vector has ………. |
| A. | a single direction |
| B. | two direction |
| C. | a length |
| D. | a and c |
| Answer» D. a and c | |
| 430. |
The problem of aliasing are |
| A. | staircase |
| B. | unequal brightness |
| C. | picket fence problem |
| D. | all of these |
| Answer» D. all of these | |
| 431. |
The technique to minimizing aliasing are |
| A. | increased no of resolution |
| B. | modify pixel intensities |
| C. | super sampling |
| D. | all of these |
| Answer» D. all of these | |
| 432. |
Lower persistence phosphorus is used in |
| A. | animation |
| B. | simple object |
| C. | complex object |
| D. | all of these |
| Answer» A. animation | |
| 433. |
Lower persistence phosphorus needs_________ refresh rate |
| A. | lower |
| B. | higher |
| C. | medium |
| D. | none of these |
| Answer» B. higher | |
| 434. |
the equation of a line, y= mx+b, b is ……. |
| A. | slope of a line the height at which the line crosses the x-axis. |
| B. | slope of a line the height at which the line crosses the y-axis. |
| C. | constant |
| D. | slope of a line |
| Answer» B. slope of a line the height at which the line crosses the y-axis. | |
| 435. |
the basic geometric structures provided by graphics primitive packages are refered to as |
| A. | inputs |
| B. | input primitives |
| C. | outputs |
| D. | output primitives |
| Answer» D. output primitives | |
| 436. |
when a line is represented by a equation, y=mx+b and rx+sy+t=0, m=……. |
| A. | (-r/s) |
| B. | r/s |
| C. | s/r |
| D. | (-s/r) |
| Answer» A. (-r/s) | |
| 437. |
when a line is represented by a equation, y=mx+b and rx+sy+t=0, b=……. |
| A. | (-s/t) |
| B. | (-t/s) |
| C. | s/t |
| D. | t/s |
| Answer» B. (-t/s) | |
| 438. |
if two lines are parallel, they have …….slope. |
| A. | different |
| B. | same |
| C. | zero |
| D. | none of these |
| Answer» B. same | |
| 439. |
if two lines are represented by equations y=m1x+b1 and y=m2x+b2, their point of intersection is given by……… |
| A. | [(m1-m2/b2-b1), (m1-m2)/(b2m1-b1m2)] |
| B. | [(m2-m1/b2-b1), (m2-m1)/(b2m1-b1m2)] |
| C. | [(m1m2/b2b1), (m1m2)/(b2m1-b1m2)] |
| D. | [(b2-b1/m1-m2), (b2m1-b1m2)/(m1-m2)] |
| Answer» D. [(b2-b1/m1-m2), (b2m1-b1m2)/(m1-m2)] | |
| 440. |
when we say a line, it…… |
| 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 | |
| 441. |
In computer graphics, pictures or graphics objects are presented as a collection of discrete picture element called______. |
| A. | dots |
| B. | pixels |
| C. | co-ordinates |
| D. | points |
| Answer» B. pixels | |
| 442. |
. _______is the smallest addressable screen element. |
| A. | dots |
| B. | point |
| C. | pixels |
| D. | spot |
| Answer» C. pixels | |
| 443. |
We can control ____of the pixels which compose the screen. |
| A. | intensity |
| B. | size |
| C. | shape |
| D. | none |
| Answer» A. intensity | |
| 444. |
We can control ____of the pixels which compose the screen. |
| A. | colour |
| B. | size |
| C. | shape |
| D. | none |
| Answer» A. colour | |
| 445. |
Each pixel on the graphics display represents______. |
| A. | a single mathematical point |
| B. | 2 mathematical point |
| C. | 4 mathematical point |
| D. | a region which theoretically can contain infinite points |
| Answer» D. a region which theoretically can contain infinite points | |
| 446. |
. A point (42,38) can be displayed on a screen by a pixel. |
| A. | (4,3) |
| B. | (3,4) |
| C. | (5,4) |
| D. | (4,4) |
| Answer» A. (4,3) | |
| 447. |
The process of determining the appropriate pixel for representing, picture or graphics objects is known as___ |
| A. | scan conversion |
| B. | rasterization |
| C. | scanning |
| D. | graphical representation |
| Answer» B. rasterization | |
| 448. |
The process representing continuous picture or graphics objects as a collection of descrete pixels is called____. |
| A. | scan conversion |
| B. | rasterization |
| C. | scanning |
| D. | graphical representation |
| Answer» A. scan conversion | |
| 449. |
The computer graphics allows____ on pictures before displaying it. |
| A. | rotation |
| B. | translation |
| C. | scaling and projections |
| D. | all of above |
| Answer» D. all of above | |
| 450. |
Graphics devices include_____. |
| A. | input devices |
| B. | output devices |
| C. | a and b |
| D. | none |
| Answer» C. a and b | |
Done Studing? Take A Test.
Great job completing your study session! Now it's time to put your knowledge to the test. Challenge yourself, see how much you've learned, and identify areas for improvement. Don’t worry, this is all part of the journey to mastery. Ready for the next step? Take a quiz to solidify what you've just studied.