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Audio Quiz
April 1955 Popular Electronics

April 1955 Popular Electronics

April 1955 Popular Electronics Cover - RF Cafe [Table of Contents]People old and young enjoy waxing nostalgic about and learning some of the history of early electronics. Popular Electronics was published from October 1954 through April 1985. All copyrights (if any) are hereby acknowledged.
There are a lot of audiophiles in the RF Cafe audience, so this 10-question quiz about audio topics from Popular Electronics should prove useful. It covers not just the physical aspects but also some simple electronics concepts, like decibels of gain, crossover networks, push-pull amplifiers, etc. Enjoy.

 

 

 

See all articles from Popular Electronics.

Audio Quiz

1. Negative feedback added to an amplifier will:

(a) increase the gain
(b) decrease the gain
(c) not change the gain



2. An amplifier which provides more gain for high-level signals and less gain for low-level signals is known as:

(a) a volume expander
(b) a volume compressor



3. When two separate loudspeakers are used, one for the high frequencies and the other for the low
     frequencies, the high frequency speaker is known as:

(a) woofer
(b) flutter
(c) tweeter



4. One of the main advantages of a push-pull amplifier is that it cancels:

(a) even harmonic distortion
(b) odd harmonic distortion
(c) both even and odd harmonic distortion



5. The purpose of a bass boost circuit is:

(a) to increase low frequency response
(b) to increase high frequency response
(c) to increase both low and high frequency response



6. A type of distortion resulting from operating tubes beyond the straight-line portion of their
    characteristic curves is:

(a) frequency distortion
(b) phase distortion
(c) harmonic distortion



7. Which of the following types of pick-ups is piezo-electric?

(a) strain gauge
(b) dynamic
(c) crystal



8. The dB gain of an amplifier whose voltage gain is 100 is:

(a) 2 dB
(b) 40 dB
(c) 100 dB



9. The purpose of a crossover network is to:

(a) permit switching from radio to phono without causing a click in the loudspeaker
(b) permit playing of both 78 and 45 RPM records on the same turntable without changing turntable speed
(c) channel signal frequencies to the proper loudspeaker in a system using more than one speaker



10. The audio frequency range extends, approximately, from:

(a) 20 to 2000 cycles per second
(b) 2000 to 20,000 cycles per second
(c) 20 to 20,000 cycles per second



<Answers below>

 

 

Here are other Popular Electronics quizzes:

- RC Circuit Quiz, Jun 1963
- Diode Quiz, Jul 1961
- Kool-Keeping Kwiz, Jun 1970
- Electronic Curves Quiz, Feb 1963
- Electronic Numbers Quiz, Decr 1962
- Energy Conversion Quiz, Apr 1963
- Coil Function Quiz, Jun 1962
- Electronics Analogy Quiz, Aug 1960
- Audio Quiz, April 1955
- Electronic Unit Quiz, May 1962

- Capacitor Circuit Quiz, Jun 1968
- Magnetic Phenomena Quiz, Feb 1962
- Electronics Geography Quiz, Apr 1970
- Electronic Menu Quiz,  Aug 1963
- Electronic Noise Quiz, Aug 1962
- Electronic Current Quiz, Oct 1963
- Electronic Inventors Quiz, Nov 1963
- Resistor Function Quiz, Jan 1962
- Electronic Measurement Quiz, Jan 1963
- Vacuum Tube Quiz, Feb 1961

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Audio Quiz Answers:

1. b

2. a

3. c

4. a

5. a

6. c

7. c

8. b

9. c

10. c

 

 

 

 

Posted  October 11, 2013

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