Elementary Radio Quiz
December 1947 Radio-Craft

December 1947 Radio-Craft [Table of Contents] Wax nostalgic about and learn from the history of early electronics. See articles from Radio-Craft, published 1929 - 1953. All copyrights are hereby acknowledged.

There is a good reason why Harold Glenn called this an "Elementary Radio Quiz." It appeared in a 1947 issue of Radio-Craft magazine. If you have been in the analog and RF electronics field for more than a couple years and don't score 100%, it has to be due to a misreading of accidental selecting of the wrong answer. I know what you're thinking - "The fool must have screwed up and missed at least one and is making excuses." Not this time - although I don't deny it could have happened. Anyway, it might be a fun quiz to pass out in the break room or maybe present it to a Ph.D. candidate during an interview ;-) "Bonne chance!," as Corporal Louis LeBeau might say!.

Elementary Radio Quiz

By Harold Glenn

Check your radio knowledge. A more advanced quiz will appear in an early issue.

1. Light and electricity are energy, and travel in the form of:

a. waves
b. frequency
c. amplitude
d. electrons

2. Which has the longest wave length?

a. light
b. heat
c. radio

3. The inductor is:

a. a coil
b. a condenser
c. an air core
d. an iron core

4. The to-and-fro surge of an electric current in a circuit is called:

a. detection
b. inductance
c. oscillation
d. capacitance

5. The loudspeaker changes:

a. sound into electric waves
b. r.f. to a.f.
c. a.f. to r.f.
d. electric waves into sound waves

6. In order to operate, the loudspeaker must have:

a. r.f. waves
b. a.f. waves
c. pure direct current
d. pure a.c. sine wave

7. The purpose of the detector is to change:

a. a.f. to r.f.
b. r.f. to a.f.
c. resonance to oscillation
d. oscillation to resonance

8. The action of the detector is called:

a. resonance
b. rectification
c. oscillation

9. Resistance in the tuned circuit causes:

a. distortion
b. rectification
c. broad tuning
d. oscillation

10. What is the frequency of 60-cycle, 117-volt, 100-watt house current?

Answers to Quiz on page 83

Quizzes from vintage electronics magazines such as Popular Electronics, Electronics-World, QST, and Radio News were published over the years - some really simple and others not so simple. Robert P. Balin created most of the quizzes for Popular Electronics. This is a listing of all I have posted thus far.

Answers

1. a

2. c

3. a

4. c

5. d

6. b

7. b

8. b

9. c

10. 60 cycles

Posted December 3, 2020