This is the Multiple Choice Questions in Chapter 19: Television from the book Electronic Communication Systems by Roy Blake
See also: MCQ in Electronic Communication Systems by George Kennedy
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
Answer: Option B
Solution:
2. The NTSC specification was drawn up by the:
a. FCC
b. IRE
c. EIA
d. IEEE
Answer: Option C
Solution:
3. RGB stands for:
a. Red-Green Burst
b. Red-Green Brightness
c. Red-Green Bandwidth
d. Red-Green-Blue
Answer: Option D
Solution:
4. The number of scan lines in an NTSC signal is:
a. 525
b. 625
c. 1024
d. 1250
Answer: Option A
Solution:
5. The number of NTSC frames sent per second is:
a. 25
b. 30
c. 50
d. 60
Answer: Option B
Solution:
6. The number of NTSC fields sent per second is:
a. 25
b. 30
c. 50
d. 60
Answer: Option D
Solution:
7. The aspect ratio of a standard TV receiver is:
a. 3 : 4
b. 4 : 3
c. 525 : 625
d. 625 : 525
Answer: Option B
Solution:
8. Luminance refers to:
a. brightness
b. contrast
c. chroma
d. raster
Answer: Option A
Solution:
9. Luminance is measured in:
a. foot-candles
b. lumins
c. IRE units
d. NTSC units
Answer: Option C
Solution:
10. The maximum luminance level is called:
a. max white
b. peak white
c. all white
d. whiter than white
Answer: Option B
Solution:
11. The blanking level corresponds to a luminance of:
a. white
b. black
c. whiter than white
d. blacker than black
Answer: Option B
Solution:
12. The sync pulse level corresponds to a luminance of:
a. white
b. black
c. whiter than white
d. blacker than black
Answer: Option D
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
Answer: Option A
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
Answer: Option B
Solution:
15. The smallest picture element is called a:
a. dot
b. pic
c. pixel
d. none of the above
Answer: Option C
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
Answer: Option A
Solution:
17. Compared to the luminance signal, the horizontal resolution for color is:
a. much greater
b. about the same
c. much less
d. resolution does not apply to color
Answer: Option C
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
Answer: Option B
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
Answer: Option D
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
Answer: Option C
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
Answer: Option D
Solution:
22. SAP stands for:
a. separate audio program
b. separate audio pulse
c. sync amplitude pulse
d. sync audio pulse
Answer: Option A
Solution:
23. The horizontal output transformer is also called:
a. the isolation transformer
b. the video transformer
c. the flyback transformer
d. the yoke
Answer: Option C
Solution:
24. Compared to a monochrome CRT, the accelerating voltage on a color CRT is:
a. about the same
b. much higher
c. much lower
d. color CRTs use magnetic acceleration
Answer: Option B
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
Answer: Option A
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
Answer: Option B
Solution:
COMPLETION
1. ____________________ is a conductive coating on both the inside and outside of the CRT in a TV.
Answer: Aquadag
Solution:
2. The ____________________ standard for TV has been in use since 1953.
Answer: NTSC
Solution:
3. Video systems form pictures by a ____________________ process.
Answer: scanning
Solution:
4. During the horizontal blanking interval, the electron beam ____________________ from right to left.
Answer: retraces
Solution:
5. The NTSC specifies a ____________________ video signal.
Answer: composite
Solution:
6. The ____________________ ratio of a CRT screen is the ratio of width to height.
Answer: aspect
Solution:
7. Brightness information is called ____________________.
Answer:
luma
luminance
Solution:
8. Color information is called ____________________.
Answer:
chroma
chrominance
Solution:
9. The blanking period before the sync pulse is called the front ____________________.
Answer: porch
Solution:
10. Odd and even fields are identified by the ____________________ of the vertical sync pulse.
Answer: position
Solution:
11. Each horizontal scan line takes ____________________ microseconds, not including blanking.
Answer: 62.5
Solution:
12. Horizontal blanking lasts ____________________ microseconds.
Answer: 10
Solution:
13. Vertical blanking lasts about ____________________ milliseconds.
Answer: 1.3
Solution:
14. Picture elements are called ____________________.
Answer: pixels
Solution:
15. The maximum number of scan lines under NTSC is ____________________.
Answer: 525
Solution:
16. The human eye is most sensitive to the color ____________________.
Answer: green
Solution:
17. The color sub-carrier frequency is approximately ____________________ MHz.
Answer: 3.58
Solution:
18. SAP stands for ____________________ audio program.
Answer: separate
Solution:
19. The second anode of a CRT is often called the ____________________.
Answer: ultor
Solution:
20. The accelerating voltage for a color CRT is about ____________________ kV.
Answer: 20 to 30
Solution:
21. The inside of a CRT’s face-plate is coated with ____________________ to generate the picture.
Answer: phospor
Solution:
22. The horizontal output transformer is called the ____________________ transformer.
Answer: flyback
Solution:
23. A good way to separate luma from chroma is to use a ____________________ filter.
Answer: comb
Solution:
24. The color ____________________ turns off the color circuitry when a color TV is receiving a monochrome signal.
Answer: killer
Solution:
25. Signal levels in cable TV systems are usually measured in ____________________.
Answer: dbmV
Solution:
26. The antenna for a CATV system is located at the ____________________ end.
Answer: head
Solution:
27. A ____________________ shows a color-bar signal with predetermined levels and phases.
Answer: vectorscope
Solution:
28. Color intensity is called ____________________.
Answer: saturation
Solution:
29. The ____________________ of the chroma signal represents the color hue.
Answer: phase
Solution:
30. The ____________________ controls in a color TV adjust the electron beams to strike the correct color phosphor dots.
Answer: purity
Solution:
31. The ____________________ controls in a color TV adjust the electron beams to strike the correct triad of phosphor dots.
Answer: convergence
Solution:
Complete List of MCQ in Electronic Communication Systems by Blake
Related Content
P inoyBIX educates thousands of reviewers and students a day in preparation for their board examinations. Also provides professionals with materials for their lectures and practice exams. Help me go forward with the same spirit.
“Will you subscribe today via YOUTUBE?”
TIRED OF ADS?
- Become Premium Member and experienced complete ads-free content browsing.
- Full Content Access to Premium Solutions Exclusive for Premium members
- Access to PINOYBIX FREEBIES folder
- Download Reviewers and Learning Materials Free
- Download Content: You can see download/print button at the bottom of each post.
PINOYBIX FREEBIES FOR PREMIUM MEMBERSHIP:
- CIVIL ENGINEERING REVIEWER
- CIVIL SERVICE EXAM REVIEWER
- CRIMINOLOGY REVIEWER
- ELECTRONICS ENGINEERING REVIEWER (ECE/ECT)
- ELECTRICAL ENGINEERING & RME REVIEWER
- FIRE OFFICER EXAMINATION REVIEWER
- LET REVIEWER
- MASTER PLUMBER REVIEWER
- MECHANICAL ENGINEERING REVIEWER
- NAPOLCOM REVIEWER
- Additional upload reviewers and learning materials are also FREE
FOR A LIMITED TIME
If you subscribe for PREMIUM today!
You will receive an additional 1 month of Premium Membership FREE.
For Bronze Membership an additional 2 months of Premium Membership FREE.
For Silver Membership an additional 3 months of Premium Membership FREE.
For Gold Membership an additional 5 months of Premium Membership FREE.
Join the PinoyBIX community.
