McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Electronics and Communication Engineering .
| 451. |
Computer graphics allows_____. |
| A. | user interface |
| B. | plotting of graphics and chart |
| C. | office automation and desktop publishing |
| D. | all of above |
| Answer» D. all of above | |
| 452. |
Computer graphics allows______. |
| A. | copmuter-aided drafting and design |
| B. | simulaion and animation |
| C. | art and commerce |
| D. | all of above |
| Answer» D. all of above | |
| 453. |
Computer graphics allows_____. |
| A. | process control |
| B. | cartography |
| C. | art and commerce |
| D. | all of above |
| Answer» D. all of above | |
| 454. |
The Hardware components of conceptual framework for interactive graphics is/are________. |
| A. | input devices |
| B. | output devices |
| C. | a and b |
| D. | none of these |
| Answer» C. a and b | |
| 455. |
The display devices are_____. |
| A. | input |
| B. | output |
| C. | a and b |
| D. | none of these |
| Answer» B. output | |
| 456. |
CRT stands for____. |
| A. | cathode ray tube |
| B. | colour ray tube |
| C. | cathode radio tube |
| D. | colour radio tube |
| Answer» A. cathode ray tube | |
| 457. |
A CRT is an evacuated _________ tube. |
| A. | plastic |
| B. | glass |
| C. | steel |
| D. | iron |
| Answer» B. glass | |
| 458. |
An____________ gun at the rear of the CRT produces a beam of electrons. |
| A. | electronic |
| B. | electron |
| C. | element |
| D. | emergency |
| Answer» B. electron | |
| 459. |
The deflection system of the CRT consistsof___________deflection plates. |
| A. | vertical |
| B. | horizontal |
| C. | a and b |
| D. | none of these |
| Answer» C. a and b | |
| 460. |
The techique(s) used for producing image on the CRT is/are__________ . |
| A. | vector scan |
| B. | raster scan |
| C. | both a and b |
| D. | none of these |
| Answer» C. both a and b | |
| 461. |
Vector scan technique is also called _________. |
| A. | scalar scan |
| B. | random scan |
| C. | raster scan |
| D. | beam scan |
| Answer» B. random scan | |
| 462. |
In vector scan display, buffer memory used is also called _________. |
| A. | refresh memory |
| B. | refresh buffer |
| C. | buffer display |
| D. | refresh circuit |
| Answer» B. refresh buffer | |
| 463. |
In vector scan display, the phosphor is to be refreshed at least ________ times per second to avoid flicker. |
| A. | 10 |
| B. | 20 |
| C. | 30 |
| D. | 40 |
| Answer» C. 30 | |
| 464. |
The techique(s) used for producing image on the CRT is/are__________. |
| A. | vector scan |
| B. | raster scan |
| C. | both a and b |
| D. | none of these |
| Answer» C. both a and b | |
| 465. |
In raster scan display,the display image is stored in the form of _________ in the refresh buffer. |
| A. | 1s |
| B. | 0s |
| C. | 1s and 0s |
| D. | none of these |
| Answer» C. 1s and 0s | |
| 466. |
In raster scan CRT, the beam is swept back and forth from _______ across the screen. |
| A. | left to right |
| B. | right to left |
| C. | up to down |
| D. | down to up |
| Answer» A. left to right | |
| 467. |
In raster Scan CRT, when a beam is moved from the left to the right,it s ____ and it is _____ when it is moved from the right to the left. |
| A. | on,off |
| B. | off,on |
| C. | on,on |
| D. | off,off |
| Answer» A. on,off | |
| 468. |
In raster scan display, the screen image repeatedly scanned, this process is called _______. |
| A. | buffering of screen |
| B. | refreshig of screen |
| C. | rendering of screen |
| D. | heghlighting screen |
| Answer» B. refreshig of screen | |
| 469. |
On a black and white system with one bit per pixel , the frame buffer is called a__________. |
| A. | bitmap |
| B. | pixmap |
| C. | bitpixmap |
| D. | pixbitmap |
| Answer» A. bitmap | |
| 470. |
The cost of vector scan display is___________ cost of raster scan dispay. |
| A. | equal to |
| B. | less than |
| C. | more than |
| D. | none of these |
| Answer» C. more than | |
| 471. |
For ____________ display , scan conversion hardware is required. |
| A. | vector scan |
| B. | random scan |
| C. | raster scan |
| D. | none of these |
| Answer» C. raster scan | |
| 472. |
Aspect ratio is the ratio of ________ to prodce equal length lines in both direction on the screen |
| A. | vertical points to horizontal points |
| B. | horizontal points to vertical points |
| C. | left to riht and right to left diagonal points |
| D. | right to left and left to right diagonal points |
| Answer» A. vertical points to horizontal points | |
| 473. |
Display file can be implemented using __________ data structure. |
| A. | array |
| B. | linked list |
| C. | paging |
| D. | all of the above |
| Answer» D. all of the above | |
| 474. |
The process of digitizing a picture definition given in an application program into a set of pixel-intensity Values is called ____________. |
| A. | animation |
| B. | sampling |
| C. | rasterization |
| D. | scan-conversion |
| Answer» D. scan-conversion | |
| 475. |
The size of frame buffer(video memory )depends on_____________. |
| A. | resolution only |
| B. | number of different colors only |
| C. | both (b) and(c) |
| D. | computer byte |
| Answer» C. both (b) and(c) | |
| 476. |
A pixel of black_white image or graphics object takes _________ space in memory. |
| A. | 1 bit |
| B. | 2 bits |
| C. | 1 nibble |
| D. | 1 byte |
| Answer» C. 1 nibble | |
| 477. |
The resolution of an image is __________. |
| A. | number of pixels per unit area |
| B. | number of pixels per unit length inhorizontal |
| C. | number of pixels per unit length in vertical |
| D. | none of these |
| Answer» A. number of pixels per unit area | |
| 478. |
The path the electron beam takes at the end of each refresh cycle is called______. |
| A. | horizontal retrace |
| B. | vertical retrace |
| C. | diagonal retrace |
| D. | left to right retrace |
| Answer» B. vertical retrace | |
| 479. |
The path the electron beam takes when returning to the left side of the CRTscreen is called_____. |
| A. | horizontal retrace |
| B. | vertical retrace |
| C. | diagonal retrace |
| D. | top to bottom retrace |
| Answer» A. horizontal retrace | |
| 480. |
Frame buffer is used to store_____. |
| A. | number if pixels in image |
| B. | intencities of pixels |
| C. | image definition |
| D. | co-ordinate values of image |
| Answer» B. intencities of pixels | |
| 481. |
The clearity of a displayed image depends on the______. |
| A. | resolution |
| B. | floating point precision of system |
| C. | associated software |
| D. | aspect ratio |
| Answer» A. resolution | |
| 482. |
Random scan monitor can also referred to as______. |
| A. | vector displays |
| B. | stroke writing displays |
| C. | calligraphic displays |
| D. | none of the above |
| Answer» A. vector displays | |
| 483. |
Which facility is provided by computer graphics to change the shape colour or other properties of objects begin viewed. |
| A. | motion dynamics |
| B. | update dynamics |
| C. | a & b |
| D. | none of these |
| Answer» B. update dynamics | |
| 484. |
and start point is (20, 20), then slope m =? |
| A. | 1.2 |
| B. | 0.8 |
| C. | -0.4 |
| D. | none of the above |
| Answer» B. 0.8 | |
| 485. |
is a point on a circle that has center at the origin. Which of the following points are also on circle ? |
| A. | (2,-4),(-2,4) |
| B. | (4,-2) |
| C. | (-4,2) |
| D. | all of above |
| Answer» D. all of above | |
| 486. |
and (5,3) is to be drawn, using DDA algorithm. Find the value of x and y increments? |
| A. | x-increments = 1; y-increments =1 |
| B. | x-increments = 0.5; y-increments =1 |
| C. | x-increments = 1; y-increments =0.5 |
| D. | none of above |
| Answer» C. x-increments = 1; y-increments =0.5 | |
| 487. |
A closed polyline is called a _________. |
| A. | polychain |
| B. | polygon |
| C. | polyclosed |
| D. | closed chain |
| Answer» B. polygon | |
| 488. |
__________ is a method for testing a pixel inside of a polygon. |
| A. | even-odd method |
| B. | winding number method |
| C. | a and b |
| D. | none of these |
| Answer» C. a and b | |
| 489. |
The seed fill algorithm for filling polygon is classified as ________ fill algorithm and _______ fill algorithm. |
| A. | flood, boundry |
| B. | even, odd |
| C. | edge, flood |
| D. | boundry, scan |
| Answer» A. flood, boundry | |
| 490. |
The putpixel function draws the pixel specified_______. |
| A. | intensity |
| B. | colour |
| C. | size |
| D. | shape |
| Answer» B. colour | |
| 491. |
Mapping the world co-ordinates into physical device co-ordinates is called__________. |
| A. | translation |
| B. | homogeneous transformation |
| C. | co-ordinate conversion |
| D. | viewing transformation |
| Answer» D. viewing transformation | |
| 492. |
An area on a physical device to which a window is mapped is called a __________. |
| A. | window |
| B. | segment |
| C. | clip |
| D. | viewport |
| Answer» D. viewport | |
| 493. |
The line is said to be interior to the clipping window if ___________point(s) is/ are interior to the window. |
| A. | any line |
| B. | one end |
| C. | both end |
| D. | any two |
| Answer» C. both end | |
| 494. |
The transformation which maps the viewing co-ordinates to normalized device co-ordinte is called _______. |
| A. | viewing transformation |
| B. | translation |
| C. | normalization transformation |
| D. | homogeneous transformation |
| Answer» C. normalization transformation | |
| 495. |
If both end points of a line are exterior to the clipping window,__________. |
| A. | the line is interior to the clipping window |
| B. | the line is not necessarily completely exterior to the clipping window |
| C. | the line is completely exterior to the clipping window |
| D. | none of these |
| Answer» B. the line is not necessarily completely exterior to the clipping window | |
| 496. |
If both end points of a line are completely to the left of clipping window,________. |
| A. | the line is interior to the clipping window |
| B. | the line is not necessarily completely exterior to the clipping window |
| C. | the line is completely exterior to the clipping window |
| D. | none of these |
| Answer» C. the line is completely exterior to the clipping window | |
| 497. |
In Cohen-sutherland subdivision line clipping algorithm, bit 1 in region code is set if _____. |
| A. | end point of line is to the left of the window |
| B. | end point of line is to the right of the window |
| C. | end point of line is to the below of the window |
| D. | end point of line is to the above of the window |
| Answer» A. end point of line is to the left of the window | |
| 498. |
In Cohen-sutherland subdivision line clipping algorithm, bit 3 in region code is set if _____. |
| A. | end point of line is to the left of the window |
| B. | end point of line is to the right of the window |
| C. | end point of line is to the below of the window |
| D. | end point of line is to the above of the window |
| Answer» C. end point of line is to the below of the window | |
| 499. |
The complex graphics operations are_______. |
| A. | selection |
| B. | separation |
| C. | clipping |
| D. | none of these |
| Answer» C. clipping | |
| 500. |
The end point of polygon are called as__________. |
| A. | edges |
| B. | vertices |
| C. | line |
| D. | none of these |
| Answer» B. vertices | |
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