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Blake: MCQ in Television

This is the Multiple Choice Questions in Chapter 19: Television from the book Electronic Communication Systems by Roy Blake. If you are looking for a reviewer in Communications Engineering this will definitely help. I can assure you that this will be a great help in reviewing the book in preparation for your Board Exam. Make sure to familiarize each and every questions to increase the chance of passing the ECE Board Exam.

Start Practice Exam Test Questions

Choose the letter of the best answer in each questions.

MULTIPLE CHOICE

1. NTSC stands for:

a. National Television Systems Commission

b. National Television Systems Committee

c. National Television Systems Council

d. Nippon Television Systems Commission

Solution:

2. The NTSC specification was drawn up by the:

a. FCC

b. IRE

c. EIA

d. IEEE

Solution:

3. RGB stands for:

a. Red-Green Burst

b. Red-Green Brightness

c. Red-Green Bandwidth

d. Red-Green-Blue

Solution:

4. The number of scan lines in an NTSC signal is:

a. 525

b. 625

c. 1024

d. 1250

Solution:

5. The number of NTSC frames sent per second is:

a. 25

b. 30

c. 50

d. 60

Solution:

6. The number of NTSC fields sent per second is:

a. 25

b. 30

c. 50

d. 60

Solution:

7. The aspect ratio of a standard TV receiver is:

a. 3 : 4

b. 4 : 3

c. 525 : 625

d. 625 : 525

Solution:

8. Luminance refers to:

a. brightness

b. contrast

c. chroma

d. raster

Solution:

9. Luminance is measured in:

a. foot-candles

b. lumins

c. IRE units

d. NTSC units

Solution:

10. The maximum luminance level is called:

a. max white

b. peak white

c. all white

d. whiter than white

Solution:

11. The blanking level corresponds to a luminance of:

a. white

b. black

c. whiter than white

d. blacker than black

Solution:

12. The sync pulse level corresponds to a luminance of:

a. white

b. black

c. whiter than white

d. blacker than black

Solution:

13. The vertical blanking pulse is serrated to:

a. maintain horizontal sync

b. maintain vertical sync

c. equalize the DC level

d. all of the above

Solution:

14. When measured in lines, horizontal resolution:

a. is greater than vertical resolution

b. is about the same as vertical resolution

c. is less than vertical resolution

d. horizontal resolution is not measured in lines

Solution:

15. The smallest picture element is called a:

a. dot

b. pic

c. pixel

d. none of the above

Solution:

16. In a color TV receiver, Y I Q refers to:

a. luminance signal, in-phase color component, quadrature phase color component

b. composite color signal, in-phase color component, quadrature phase color component

c. composite video signal, in-phase video component, quadrature video color component

d. a method of demodulating stereo sound

Solution:

17. Compared to the luminance signal, the horizontal resolution for color is:

a. much greater

c. much less

d. resolution does not apply to color

Solution:

18. The modulation used for the video signal in a standard NTSC color TV receiver is:

a. SSB

b. vestigial sideband AM

c. suppressed-carrier AM

d. FM

Solution:

19. The modulation used for the audio signal in a standard NTSC color TV receiver is:

a. SSB

b. vestigial sideband AM

c. suppressed-carrier AM

d. FM

Solution:

20. The modulation used for the chroma signal in a standard NTSC color TV receiver is:

a. SSB

b. vestigial sideband AM

c. suppressed-carrier AM

d. FM

Solution:

21. The function of the “color burst” is to:

a. detect the presence of a color video signal

b. regenerate the color sub-carrier

c. to synchronize the color demodulation line by line

d. all of the above

Solution:

22. SAP stands for:

a. separate audio program

b. separate audio pulse

c. sync amplitude pulse

d. sync audio pulse

Solution:

23. The horizontal output transformer is also called:

a. the isolation transformer

b. the video transformer

c. the flyback transformer

d. the yoke

Solution:

24. Compared to a monochrome CRT, the accelerating voltage on a color CRT is:

b. much higher

c. much lower

d. color CRTs use magnetic acceleration

Solution:

25. Deflection in CRTs used in TV receivers is done:

a. magnetically for both vertical and horizontal

b. electrostatically for both vertical and horizontal

c. electrostatically for vertical and magnetically for horizontal

d. magnetically for vertical and electrostatically for horizontal

Solution:

26. AFPC stands for:

a. allowed full picture chroma

b. automatic frequency and phase control

c. automatic frequency and picture control

d. none of the above

Solution:

COMPLETION

1. ____________________ is a conductive coating on both the inside and outside of the CRT in a TV.

Solution:

2. The ____________________ standard for TV has been in use since 1953.

Solution:

3. Video systems form pictures by a ____________________ process.

Solution:

4. During the horizontal blanking interval, the electron beam ____________________ from right to left.

Solution:

5. The NTSC specifies a ____________________ video signal.

Solution:

6. The ____________________ ratio of a CRT screen is the ratio of width to height.

Solution:

7. Brightness information is called ____________________.

luma

luminance

Solution:

8. Color information is called ____________________.

chroma

chrominance

Solution:

9. The blanking period before the sync pulse is called the front ____________________.

Solution:

10. Odd and even fields are identified by the ____________________ of the vertical sync pulse.

Solution:

11. Each horizontal scan line takes ____________________ microseconds, not including blanking.

Solution:

12. Horizontal blanking lasts ____________________ microseconds.

Solution:

13. Vertical blanking lasts about ____________________ milliseconds.

Solution:

14. Picture elements are called ____________________.

Solution:

15. The maximum number of scan lines under NTSC is ____________________.

Solution:

16. The human eye is most sensitive to the color ____________________.

Solution:

17. The color sub-carrier frequency is approximately ____________________ MHz.

Solution:

18. SAP stands for ____________________ audio program.

Solution:

19. The second anode of a CRT is often called the ____________________.

Solution:

20. The accelerating voltage for a color CRT is about ____________________ kV.

Solution:

21. The inside of a CRT’s face-plate is coated with ____________________ to generate the picture.

Solution:

22. The horizontal output transformer is called the ____________________ transformer.

Solution:

23. A good way to separate luma from chroma is to use a ____________________ filter.

Solution:

24. The color ____________________ turns off the color circuitry when a color TV is receiving a monochrome signal.

Solution:

25. Signal levels in cable TV systems are usually measured in ____________________.

Solution:

26. The antenna for a CATV system is located at the ____________________ end.

Solution:

27. A ____________________ shows a color-bar signal with predetermined levels and phases.

Solution:

28. Color intensity is called ____________________.

Solution:

29. The ____________________ of the chroma signal represents the color hue.

Solution:

30. The ____________________ controls in a color TV adjust the electron beams to strike the correct color phosphor dots.

Solution:

31. The ____________________ controls in a color TV adjust the electron beams to strike the correct triad of phosphor dots.

Solution:

Complete List of MCQ in Electronic Communication Systems by Blake

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