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Quiz about Mid Twentieth Century Television Technology

Mid Twentieth Century Television Technology Quiz

Knowledge of parts, construction and terms used in manufacturing and repairing of a home color television set.

A multiple-choice quiz by aladdinjuno. Estimated time: 5 mins.

Author
aladdinjuno

Time
5 mins

Type
Multiple Choice

Quiz #
23,773

Updated
Dec 03 21

# Qns
10

Difficulty
Tough

Avg Score
6 / 10

Plays
3749

One at a Time - Single Page - Timed Game

Question 1 of 10

1. In the United States the television broadcast standard from 1954 until the digital age was which of these? Hint

RGB

PAL

NTSC

SECAM

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Question 2 of 10

2. The NTSC (National Television Standards Committee) was also used in which of these countries? Hint

Germany

England

France

Japan

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Question 3 of 10

3. In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is around which of these? Hint

500 volts

5 thousand volts

25 thousand volts

100 thousand volts

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Question 4 of 10

4. Most modern TVs draw power even if "turned off" to standby mode. The circuit the power is used in has what function? Hint

sound

remote control

color balance

high voltage

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Question 5 of 10

5. The input used by an antenna or cable to a TV set uses frequencies called? Hint

SAP

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Question 6 of 10

6. The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down were known by what name? Hint

diode

transformer

yoke

capacitor

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Question 7 of 10

7. If the picture is stretched or distorted up and down like a fun house mirror the circuit to adjust or repair is which of these? Hint

horizontal

vertical

tuning

filament

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Question 8 of 10

8. The transformer that develops the high voltage in a home television is commonly known as? Hint

Van de Graaf

Tesla coil

flyback

yoke

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Question 9 of 10

9. The most common format for a home video recorder was VHS. What does VHS stand for? Hint

Video Home System

Very high speed

Video horizontal standard

Voltage house standard

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Question 10 of 10

10. What is the average power (in watts) used by a 20 to 25 inch home color television? Hint

500-800

70-100

25-50

over 1000

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Quiz Answer Key and Fun Facts

1. In the United States the television broadcast standard from 1954 until the digital age was which of these?

Answer: NTSC

PAL and SECAM were used in other countries. RGB stands for red, green, and blue - the colors of light used to create an image in a color tv set and is often used as a format name for computer monitors.

2. The NTSC (National Television Standards Committee) was also used in which of these countries?

Answer: Japan

3. In a color television set using a picture tube a high voltage is used to accelerate electron beams to light the screen. That voltage is around which of these?

Answer: 25 thousand volts

This voltage often remains in storage even if the set is unplugged. Although the voltage is very high it has very low power but it can be dangerous because your body jumps if brought in contact.

4. Most modern TVs draw power even if "turned off" to standby mode. The circuit the power is used in has what function?

Answer: remote control

Some authorities are recommending TVs, VCRs and Stereos be connected to power strips with switches and turned off when not in use to save energy. Your remote will not work until power is switched back on.

5. The input used by an antenna or cable to a TV set uses frequencies called?

Answer: RF

RF is radio frequency. IF is intermediate frequency used inside the TV for processing. AF is audio frequency. SAP is second audio program which may have another language or other soundtrack as an option to the main soundtrack.

6. The electromagnetic coils on the neck of the picture tube or tubes which pull the electron beam from side to side and up and down were known by what name?

Answer: yoke

Twisting the yoke will tilt the picture. A projection color television uses three picture tubes and yokes for red, green and blue light.

7. If the picture is stretched or distorted up and down like a fun house mirror the circuit to adjust or repair is which of these?

Answer: vertical

Improper vertical linearity would describe this symptom.

8. The transformer that develops the high voltage in a home television is commonly known as?

Answer: flyback

The flyback is usually connected to the system that pulls the electron beam across the screen in one direction to 'paint' a line of the image and then returns in the other direction much faster.

9. The most common format for a home video recorder was VHS. What does VHS stand for?

Answer: Video Home System

JVC (Japan Victor Corporation) and Matsushita (Panasonic) developed the VHS format to compete with Sony which developed the Beta format as the first home video cassette recorder. VHS originally stood for Vertical Helical Scan, but now means Video Home System.

10. What is the average power (in watts) used by a 20 to 25 inch home color television?

Answer: 70-100

About the same as as the most popular light bulb size.

Source: Author aladdinjuno

This quiz was reviewed by FunTrivia editor crisw before going online.
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