Test Questions:

 

Video Concepts:

 

1.On a TV or computer monitor the picture is displayed by

 

A:  an electron beam that projects one line of picture information at a time horizontally across the display making elements on the inside of the picture tube glow with the picture information.

B: projecting complete frames on the picture tube one at a time like a film projector

fast enough to make a smooth picture

 

 

2. What two parts of the video signal control the rate of the picture display ?

 

A:  the amplitude of the signal

B: Horizontal sync

C:  the termination of the signal 

D: Vertical sync

 

           

3. The alternating display of the odd and even lines of picture information in a video display is know as?

 

A: intermittent display

B: progressive scan

C: Interlaced video

 

4. True or false, computer displays achieve higher resolution by increasing the rate or speed of the scanning beam and increasing the number of lines displayed.

 

 

5. True or false, in progressive scanning, the beam scans one line at a time, instead of the interlace mode of a TV system.

 

6. The most common computer display resolutions are

_______________________________

_______________________________

_______________________________

_______________________________

 

 

 

 

 

 

7. What are the lowest resolution display devices?

 

A: 640 X 480 monitors

B: NTSC  Television monitors

C: Multi-scan Monitors

 

8. What is the scan rate of NTSC Video?

_________________________________

 

 

9. The most common and basic type of NTSC video signal used in AV presentations is

 

A: component video

B: composite video

C: progressive video

 

 

 

10. What three basic parts of picture information are combined in composite video?

 

__________________________________________

__________________________________________

__________________________________________

 

11. Component video and computer signals are used to maintain the quality of the picture by?

 

A: Using higher quality cables

B: keeping the color, luminance or brightness information, and signal  timing information separated on different cables.

 

 

11. Is length of the cables important to component video?   Why?

 

________________________________________________________________________________________________________________________________________________

 

12. What are the most common signal formats of component video and computer video that we use in the AV business?

 

_______________________________

_______________________________

_______________________________

_______________________________

_______________________________

 

13. Which component format is commonly known as component video?

 

________________________________

 

14. If you set them up right, which should look better composite or component video?

 

_________________________________

 

15.True or False, the Y signal caries the luminance or brightness information as well as the image fine detail information. The Y signal also caries the sync or signal timing information that tells the scan to begin another line of information

 

 

16. What is the common cable color convention for component NTSC video?

 

The Y (luminance) signal is ______________

The R-Y is ________________

The B-Y is ________________

 

17. What is the type of cable used for Svhs or Hi-8 recording or playback.

________________________________

 

18. How is picture information sent on RGBS 4 wire component ?

 

A: Color and picture information is carried on three Red, Blue and Green cables that combine to form a color image and a forth cable caries both the horizontal and vertical scan timing information to the display device.

B: All the color and timing are sent down the R,G,B cables and the picture detail is sent on the S cable

 

19. How is a RGBHV video signal different?  

 

A: the H and V cables carry sound information

B: The horizontal and vertical sync information separation is maintained on independent cables.

 

 

20. What is the preferred method to transport computer video over a long distance?

 

A: composite cables

B: 15 pin monitor cables

C: RGBS four wire or RGBHV five wire.

 

 

 

 

 

 

 

 

21.Name this video connector

 

 

 

 

 

 

 

 

 

 

 

 

  1. True or False, these type of connectors are used in a professional setup because they are secure locking connections.

 

  1. Name this video connector

 

 

 

 

 

 

 

 

 

 

  1. Name this connector

 

 

 

 

 

 

 

 

 

 

 

  1. Name this connector

 

 

 

 

 

 

 

 

 

  1. This connector is also know as a?

 

  1. Name this connector

 

 

 

 

 

 

  1. This connector is also known as a?

 

  1. Name this connector

 

 

 

 

 

 

 

 

 

30. True or false, cables with these connections on the end are know as RF Cables?

 

31.True or False, RF video cannot carry audio with video signal?

 

32. Name this connector

 

 

 

 

 

 

 

 

 

 

33. True or false, The end of the path of a video signal is left unterminated.

 

34.True or False, when looping a video signal to another monitor, set the termination switch on the unit to OFF or Hi-Z

 

35. True or False, a bright blown out picture can indicate a unterminated video signal

 

36. True or False, double termination is caused by leaving the termination in the off position on the end of the line.

37. True or False, many new monitors and new video equipment has automatic termination circuits instead of external switches.

 

38. Name a common coaxial video cable type.

 

39. The most common cause for Video Hum is

 

A: Nearby radio stations

B: Broken video equipment

C: More than one path to ground for the video signal.

 

40. An inline device for removing ground hum in a video line is known as a

 

A: Video grounder

B: A Vidiot

C: A Hum Bucker

D: A Humdinger

 

41. Ungrounding a remote video monitor with a ground lift can eliminate a path to ground and eliminate hum.

 

42.True or False, It is safe to ground lift and entire video system to eliminate hum.

 

43. The best way to prevent hum in a video system is to

 

A: keep all video cables away from power cables

B: Keep all video equipment on a common ground.

C: Plug equipment in using multiple power sources and ground points.

D: make sure that you know the words to the song

 

44.A computer interface is used in a video setup to

 

A: provides a means for getting a computer display out of a computer to a larger screen display.

B: reduce the 15 pin computer video output to a 4 or 5  wire output that can be easily controlled.

C: enable the manipulation of picture position and picture color and brightness values of a computer video signal.

D: all of the above

 

45. The extron cable that adapts a computer to the interface as well as the local monitor  is known as a

 

A: Monitor Breakout cable

B: Jacobs cable

C: A squid

 

46. On a Extron 202 interface, the sync format of 4 wire composite verses 5 wire seperate sync is set by

A: factory presets

B: dip switch # 3, on for separate

C: is automatically set by the interface

D: the head carpenter on the call

 

47. The front panel controls on the Extron 202 interface have four basic controls for the video signal they are

__________________________

__________________________

__________________________

__________________________

 

48. The Picture control dials on the front are enabled or disabled by which dip switch on the back of the Extron 202?

 

49 Termination for the computer interface signal in input 1 can be set by which dip switch on the extron 202

 

50. If an external monitor is used for the computer setup as you have with a desktop computer, the termination on the interface needs to be set to

A: on

B: off

 

51. This is commonly refered to as a

 

 

 

____________________________

 

 

 

 

 

 

 

 

52. A video DA is used to

 

  1. take several inputs and switch them to one output.
  2. help in reducing hum in a picture.
  3. replicate a video signal to many outputs.
  4. fetch fresh doughnuts for the crew ( doughnut assistant)

 

 

 

53. A video switcher can

 

A.  enable switching between video sources to multiple discreet destinations.

  1. select between multiple inputs to one destination.
  2. Need to have the loop through options terminated if not in use.
  3. B and C

 

 

54. True or false, a video router is used to send many inputs to many discreet outputs.

 

55. The DSC1024 can be used to

            A: convert computer resolutions to NTSC Video.

            B: convert video resolution signals to RGBHV computer resolution.

            C: switch between computers and videotape players.

D:generate a test pattern to help with projector setup.

      E: all of the above.

 

56. How many video or computer inputs does the Sony DSC 1024 have?

 

57. How many memory presets does the DSC 1024 hold?

 

58. True or false, you can loop through the inputs on a Sony DSC1024?

 

59. True or false, the Sony 1024 15 pin inputs will auto terminate so you don’t have to check the termination switches? 

 

60. From the Sony DSC 1024 troubleshooting tips, what do you check if the computer source on input 3’s picture is Greenish?

            A: check to see if the input source is correct.

            B: adjust the horizontal picture controls

            C: check the RGB/YRB selector to RGB

            D:  set the SYNC AUTO/ON G selector to ON G

            E: check the computer for viruses, it is obviously sick.

 

 

 

61. What should you check if the computer source on input 3’s picture is Purpleish?

            A:  set the SYNC AUTO/ON G selector to ON G

            B: Change the output rate to match the projector

            C: check the RGB/YRB selector to RGB

           

 

62. To output 1024 x 768 resolution to the projector, set the output on the DSC 1024 to

            A: NTSC

            B: 31.5k          

            C: 37k

            D: 48k

            E: 64k

 

63. The Sanyo PLC projector can take inputs with resolutions up to

            A: 1280 x 1024

            B: 1024 x 768

 

64. True or False, a computer input resolution of 1280 x 1024 is compressed or scaled to 1024 x 768 for projection by the Sanyo PLC-XF 10

 

65. True or False, For Rear screen projection, the projector should be placed at the bottom of the screen.

 

66. According to the Sanyo Projector manual, if the Screen is 175” size the projector should be.

A: 20 feet away

B: 26.9 feet away

C: 40 feet away

 

67. To get true center placement of the projector to the screen you can

            A: measure the distance straight to the screen from the projector.

            B: Use your best guess to where the center is.

            C:  Ask the head rigger where it is suppose to go.

D: measure the sides of the triangle formed with the projector and the sides of the screen making sure they match.