# Electronic Angle QuizSeptember 1967 Popular Electronics

 September 1967 Popular Electronics Table of Contents Wax nostalgic about and learn from the history of early electronics. See articles from Popular Electronics, published October 1954 - April 1985. All copyrights are hereby acknowledged.

Dang, I swapped two answers and scored an 80%. Haste makes waste, as the saying goes. Don't rush through this 1967 Popular Electronics "Electronic Angle Quiz" like I did and you'll probably ace it with the greatest of ease - especially if you have been in the electronics realm at least since the 1980s. Generation X'ers can have a two-question handicap (might never have seen real-life example of drawing "A" or "E") and Millennials (might never have seen drawing "A," "B," "D," or "H") get a four-question handicap.

Electronic Angle Quiz

By Robert P. Balin

Electronics technicians use the term "angle" in a variety of fashions: it can describe the area of coverage, the shape of a mechanical component, or denote the phase relationship between voltage and current in an a.c. circuit. For example, you may have heard of the "firing angle" of a thyratron, or the "conduction angle" of a vacuum tube. To test your knowledge of electronic "angles," try matching the angles depicted in drawings A through J with the descriptive terms below (1-10).

1   Azimuth Angle ___

2   Critical Angle ___

3   Cutting Angle ___

4   Deflection Angle ___

5   Dispersion Angle ___

6   Dwell Angle ___

7   Phase Angle ___

8   Refraction Angle ___

10 Tracking Angle ___

Popular Electronics published many quizzes over the years - some really simple and others not so simple. Robert Balin created many of the quizzes. This is a listing of all I have posted thus far.

 Electronics IQ Quiz - May 1967 Plug and Jack Quiz - December 1967 Electronic Switching Quiz - October 1967 Electronic Angle Quiz - September 1967 International Electronics Quiz - July 1967 Bridge Circuit Quiz -December 1966 Diode Function Quiz - August 1965 Diagram Quiz, August 1966 TV Trouble Quiz, July 1966 Electronics History Quiz, December 1965 Scope-Trace Quiz, March 1965 Electronic Circuit Analogy Quiz, April 1973 Test Your Knowledge of Semiconductors, August 1972 Ganged Switching Quiz, April 1972 Lamp Brightness Quiz, January 1969 Lissajous Pattern Quiz, September 1963 Electronic Quizoo, October 1962 Electronic Photo Album Quiz, March 1963 Electronic Alphabet Quiz, May 1963 Quiz: Resistive? Inductive? or Capacitive?, October 1960 Vector-Circuit Matching Quiz, June 1970 Inductance Quiz, September 1961 RC Circuit Quiz, June 1963 Diode Quiz, July 1961 Electronic Curves Quiz, February 1963 Electronic Numbers Quiz, December 1962 Energy Conversion Quiz, April 1963 Coil Function Quiz, June 1962 Semiconductor Quiz - February 1967 Unknown Frequency Quiz - September 1965 Electronics Metals Quiz - October 1964 Electronics Measurement Quiz - August 1967 Meter-Reading Quiz, June 1966 Electronic Geometry Quiz, January 1965 Electronic Factor Quiz, November 1966 Electronics Math Quiz, November 1965 Series Circuit Quiz, May 1966 Electrochemistry Quiz, March 1966 Electronic Analogy Quiz, November 1961 Electronic Coupling Quiz, August 1973 Electronics Analogy Quiz, August 1960 Audio Quiz, April 1955 Electronic Unit Quiz, May 1962 Capacitor Circuit Quiz, June 1968 Quiz on AC Circuit Theory, December 1970 Magnetic Phenomena Quiz, February 1962 Electronics Geography Quiz, April 1970 Electronic Menu Quiz, August 1963 Electronic Noise Quiz, August 1962 Electronic Current Quiz, October 1963 Electronic Inventors Quiz, November 1963 Resistor Function Quiz, January 1962 Electronic Measurement Quiz, January 1963 Vacuum Tube Quiz, February 1961 Kool-Keeping Kwiz, June 1970

1 - H) The Azimuth Angle of a tape recorder is the angle between the running axis of the tape and the gap in the recording head.

2 - F) The Critical Angle of a transmitted radio signal is the minimum angle which the wavefront, as it enters the ionosphere, can make with a line extending to the center of the earth, and still be reflected back to earth.

3 - I) The Cutting Angle of a recording stylus is the angle between the longitudinal axis of the stylus and a line perpendicular to the plane of the disc.

4 - G) The Deflection Angle of a cathode-ray tube is the angle swept by the maximum peak-to-peak deflection of the beam.

5 - D) The Dispersion Angle of a speaker defines the limits of sound radiation possible from a given cone design.

6 - A) The Dwell Angle of an automobile distributor cam and point assembly is the number of degrees through which the cam rotates while the ignition points are closed.

7 - J) The Phase Angle of an alternating current is the number of electrical degrees by which the current leads or lags the applied voltage in an a.c. circuit.

8 - C) The Refraction Angle is the angle which a light ray traveling through two different mediums makes with a line perpendicular to the interface of the mediums.

9 - E) The Shadow Angle of an electron ray (tuning eye) tube defines the target area (shaded) present under minimum signal conditions.

10 - B) The Tracking Angle of a phono­graph is the angle between the longi­tudinal axis of the cartridge and a tangent to the needle groove.

Posted August 17, 2018

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