Test Your Electronics Knowledge (Part B) by J.A. Sam Wilson

Questions

Define the following terms:

1. Vector

2. Angstrom

3. High frequency

4. The number of centimeters in one inch = ______________

5. The range of frequencies with wavelengths from 0.4um to 0.78um

6. One cm = ______________ inch

7. The name of the oscillator in a phase-locked loop is ______

8. The name of the diode used to produce microwaves in a microwave oven is ___________

9. The name of the oscillator that permits a superheterodyne to receive a CW signal is ____________

10. The interval between two frequencies that has a ratio of two to one.

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Answers

1. An arrow that represents a magnitude and direction with respect to earth. Do not use the term vector to represent voltage, current, or impedance.

2. A unit of length that has been replaced by 10-8 cm.

3. The range of frequencies between 0.003 and 0.03 GHz.

4. If there are 2.54 centimeters in an inch, there are 1/2.54, or 0.3937 inches in a centimeter. The answer to question #4 is therefore 2.54.

5. High frequency (HF) includes the range of frequencies between 3MHz and 30MHz.

6. 0.3937 inches in a centimeter.

7. VCO (voltage controlled oscillator).

8. Magnetron.

9. BFO (beat frequency oscillator).

10. Octave. (Note, if you missed any of these, make a study card of it and add it to your file card system.)