McqMate
These multiple-choice questions (MCQs) are designed to enhance your knowledge and understanding in the following areas: Bachelor of Science in Computer Science (BSc CS) .
| 1. |
Expansion of CRT is ___________. |
| A. | Cathode Ray Tube. |
| B. | Computer Related Tube. |
| C. | Component Related Tools. |
| D. | Common Reflection Tube. |
| Answer» A. Cathode Ray Tube. | |
| 2. |
The operations of most _________________ is based on the Standard Cathode ray tubes. |
| A. | scanners. |
| B. | video monitors. |
| C. | printers. |
| D. | card readers. |
| Answer» B. video monitors. | |
| 3. |
A beam of electrons emitted by an electron gun is also called as ______________. |
| A. | electric rays |
| B. | magnetic rays. |
| C. | cathode rays. |
| D. | infra-red rays. |
| Answer» C. cathode rays. | |
| 4. |
Expansion of DDA is ________________. |
| A. | Device Display Analyzer. |
| B. | Digital Differential Analyzer. |
| C. | Digital Device Analyzer |
| D. | Digital Display Analyzer. |
| Answer» B. Digital Differential Analyzer. | |
| 5. |
Random scan displays are designed to draw all component lines at of a picture ______________ times each second. |
| A. | 20 to 40. |
| B. | 30 to 60. |
| C. | 40 to 70. |
| D. | 20 to 50. |
| Answer» B. 30 to 60. | |
| 6. |
In beam penetration method, ________________ layers of phosphor are usually used. |
| A. | 1 |
| B. | 2 |
| C. | 3 |
| D. | 4 |
| Answer» B. 2 | |
| 7. |
In beam penetration method, ______________and____________ layers of phosphor are usually used. |
| A. | red and green. |
| B. | blue and green. |
| C. | yellow and green |
| D. | orange and green. |
| Answer» A. red and green. | |
| 8. |
VDU is a ____________ device |
| A. | processing. |
| B. | input. |
| C. | peripheral. |
| D. | hardware. |
| Answer» C. peripheral. | |
| 9. |
The operation of the most video monitors is based on the____________ CRT. |
| A. | static. |
| B. | dynamic. |
| C. | standard. |
| D. | pervasive. |
| Answer» C. standard. | |
| 10. |
In cathode ray tube, a beam of electrons is emitted ________________. |
| A. | from the base. |
| B. | by a focusing system. |
| C. | by an electron gun. |
| D. | by deflection plates |
| Answer» C. by an electron gun. | |
| 11. |
The negatively charged electrons inside the CRT are then accelerated towards the__________. |
| A. | phosphor coating |
| B. | electron gun. |
| C. | Base |
| D. | Electron beam object |
| Answer» A. phosphor coating | |
| 12. |
The magnetic field produced by each pair of coils results in____________ deflection force. |
| A. | transverse. |
| B. | magnetic. |
| C. | slopping. |
| D. | repulsive. |
| Answer» A. transverse. | |
| 13. |
A major difference between phosphors is their _________________. |
| A. | permanent state. |
| B. | persistence. |
| C. | feebleness. |
| D. | magnetic deflection. |
| Answer» B. persistence. | |
| 14. |
The diagonal screen dimension of a personal computer system is given as the sizes varying from about _____________ inches or more. |
| A. | 12 to 21. |
| B. | 27 to 12. |
| C. | 0 to 27. |
| D. | 4 to 12. |
| Answer» A. 12 to 21. | |
| 15. |
Picture definition is stored in ___________ buffer area in memory. |
| A. | frame. |
| B. | outer. |
| C. | refresh. |
| D. | restore. |
| Answer» A. frame. | |
| 16. |
The rate at which the picture is redrawn on the screen is called ___________ rate. |
| A. | buffer. |
| B. | refresh. |
| C. | drawn. |
| D. | delete. |
| Answer» B. refresh. | |
| 17. |
A system with 24 bites per pixel & a screen resolution of 1024 by 1024 requires____________________ mega byte of storage for frame buffer |
| A. | 9. |
| B. | 7. |
| C. | 3. |
| D. | 2. |
| Answer» C. 3. | |
| 18. |
In a black and white system ________________ per pixel is needed to control the intensity of screen positions. |
| A. | 0 bit. |
| B. | 1 bit. |
| C. | 2 bits. |
| D. | 3 bits. |
| Answer» B. 1 bit. | |
| 19. |
In a high quality system ________________ bits per pixel is needed to control the intensity of screen positions. |
| A. | 8. |
| B. | 12. |
| C. | 16. |
| D. | 24. |
| Answer» D. 24. | |
| 20. |
On a black and white system with one bit per pixel, the frame buffer is commonly called as ______________. |
| A. | pixmap. |
| B. | pelmap |
| C. | bitsmap. |
| D. | bitmap. |
| Answer» D. bitmap. | |
| 21. |
For systems with multiple bits per pixel, the frame buffer is commonly called as ______________. |
| A. | pixmap. |
| B. | pelmap |
| C. | bitsmap. |
| D. | bitmap |
| Answer» A. pixmap. | |
| 22. |
Refresh rate near to ___________ frames per second is an effective technique for avoiding flicker. |
| A. | 60. |
| B. | 45. |
| C. | 30 |
| D. | 15. |
| Answer» A. 60. | |
| 23. |
Random scan monitors draw a picture ______________ at a time. |
| A. | one pixel. |
| B. | two pixel. |
| C. | one line. |
| D. | two line. |
| Answer» C. one line. | |
| 24. |
In raster scan system the ____________beam is swept across screen. |
| A. | electron. |
| B. | magnetic |
| C. | electro |
| D. | electrothermal |
| Answer» A. electron. | |
| 25. |
In raster scan system the electron beam is swept across screen from _____________. |
| A. | right to left. |
| B. | top to bottom. |
| C. | bottom to top. |
| D. | side to side. |
| Answer» B. top to bottom. | |
| 26. |
A CRT monitor displays color picture by using a combination of phosphor that emits light of __________ color |
| A. | same. |
| B. | different. |
| C. | many. |
| D. | Only one. |
| Answer» B. different. | |
| 27. |
Shadow mask methods are commonly used in raster scan system including _____. |
| A. | monitor. |
| B. | beam penetration method. |
| C. | random scan system. |
| D. | color tv |
| Answer» D. color tv | |
| 28. |
In flat panel display the emissive displays are devices that converts electric energy into_____________. |
| A. | obscurity |
| B. | stimulating energy. |
| C. | light energy. |
| D. | non emitting energy. |
| Answer» C. light energy. | |
| 29. |
In liquid crystal display the flat panel device is referred to as a _____________LCD. |
| A. | matrix. |
| B. | passive. |
| C. | active. |
| D. | submissive. |
| Answer» B. passive. | |
| 30. |
The refresh buffer also called a _______________ buffer. |
| A. | frame. |
| B. | element. |
| C. | resolution. |
| D. | bitmap. |
| Answer» A. frame. | |
| 31. |
Each screen point is referred to as a _______________. |
| A. | point. |
| B. | pixel. |
| C. | position. |
| D. | element. |
| Answer» B. pixel. | |
| 32. |
Refreshing on raster-scan displays is carried out at the rate of 60 to 80 _____________ per second. |
| A. | points. |
| B. | pixels |
| C. | positions |
| D. | frames. |
| Answer» D. frames. | |
| 33. |
The raster-scan systems, each frame is displayed in two passes using an____________ procedure. |
| A. | interlaced refresh. |
| B. | refresh. |
| C. | providing. |
| D. | vector-displays. |
| Answer» A. interlaced refresh. | |
| 34. |
The magnetic field produced by each pair of coils results in a _______________. a. transverse deflection force. |
| A. | transverse deflection force. |
| B. | generic field |
| C. | electron beam. |
| D. | horizontal deflection. |
| Answer» A. transverse deflection force. | |
| 35. |
A property of video monitors is_________________. |
| A. | length. |
| B. | centimeter |
| C. | direction |
| D. | aspect ratio. |
| Answer» D. aspect ratio. | |
| 36. |
Intensity of the electron beam is controlled by setting voltage levels on the________. |
| A. | control panel. |
| B. | electron gun. |
| C. | connector pins. |
| D. | control grid. |
| Answer» D. control grid. | |
| 37. |
The__________________ emits a small spot of light at each position contacted by the electron beam. |
| A. | electron gun. |
| B. | control grid. |
| C. | phosphor |
| D. | cathode. |
| Answer» C. phosphor | |
| 38. |
The maximum number of points that can be displayed without overlap on a CRT is referred to as its_____________. |
| A. | persistence. |
| B. | non persistence. |
| C. | resolution |
| D. | distribution. |
| Answer» C. resolution | |
| 39. |
Sterio scopic viewing is also a part in ________________. |
| A. | virtual reality system. |
| B. | essential system |
| C. | Actual reality system. |
| D. | Implicit system. |
| Answer» A. virtual reality system. | |
| 40. |
The primary output devices in a graphics system is a __________________. |
| A. | video monitor. |
| B. | video display devices. |
| C. | cathode ray tube. |
| D. | deflection CRT. |
| Answer» A. video monitor. | |
| 41. |
The focusing system in a CRT is needed to force the electron beam to converge into a _____________ as it strikes the phosphor. |
| A. | large spot. |
| B. | small spot. |
| C. | double spot |
| D. | spot. |
| Answer» B. small spot. | |
| 42. |
A shadow-mask CRT has______________ phosphor color dots at each pixel position. |
| A. | five. |
| B. | four |
| C. | three |
| D. | two. |
| Answer» C. three | |
| 43. |
The______________ shadow-mask method, is commonly used in color CRT systems. |
| A. | delta-delta. |
| B. | beta-beta. |
| C. | delta-beta. |
| D. | alpha-alpha. |
| Answer» A. delta-delta. | |
| 44. |
Color CRTs in graphics systems are designed as____________. |
| A. | CRT monitors. |
| B. | RGB monitors. |
| C. | DVST monitors. |
| D. | color monitors. |
| Answer» B. RGB monitors. | |
| 45. |
DVST stands for ________________. |
| A. | Device View Storage Tube. |
| B. | Direct View Space Tube. |
| C. | Direct View Storage Tube. |
| D. | Device View Space Tube. |
| Answer» C. Direct View Storage Tube. | |
| 46. |
The emissive displays are device that convert electrical energy into_____________. |
| A. | light. |
| B. | image |
| C. | pixel |
| D. | colors |
| Answer» A. light. | |
| 47. |
The plasma is also called as ____________ displays. |
| A. | image. |
| B. | glass |
| C. | gas-discharge. |
| D. | glass-discharge |
| Answer» C. gas-discharge. | |
| 48. |
A beam of slow electrons excites only the outer____________ layer. |
| A. | blue. |
| B. | green |
| C. | white |
| D. | red |
| Answer» D. red | |
| 49. |
A beam of very fast electrons penetrates through the red layer and excites the inner_____________ layer. |
| A. | blue. |
| B. | green |
| C. | white |
| D. | red |
| Answer» B. green | |
| 50. |
LED stands for_______________. |
| A. | Light Emitted Display. |
| B. | Light Emitting Display. |
| C. | Light Emitting Diode. |
| D. | Light Emit Diode. |
| Answer» C. Light Emitting Diode. | |
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