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RF Cafe Quiz #13

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All RF Cafe quizzes would make perfect fodder for employment interviews for technicians or engineers - particularly those who are fresh out of school or are relatively new to the work world. Come to think of it, they would make equally excellent study material for the same persons who are going to be interviewed for a job.

Some of these books used in quizzes are available as prizes in the monthly RF Cafe Giveaway.

Note: Many answers contain passages quoted in whole or in part from the text.




1. Which "hand rule" applies for determining the direction of the magnetic field around a current-carrying wire? Assume conventional current flow from positive to negative, and magnetic field leaving the north pole and entering the south pole.

a) Right-hand rule
b) Left-hand rule
c) Whole-hand rule



2. What is the name given to the display
    pattern when independent signals are fed
    into the x-axis and y-axis ports of an
    oscilloscope?

a) X-Y waveform
b) Lissajous waveform
c) Complex



3. How is the word "Fresnel" pronounced (as in Fresnel zone or Fresnel grating)?

a) frēs-nĕl'
b) frā-nĕl'
c) frĕs-nĕl'



RF Cafe - 4. What type of filter is shown to the right?

a) Lowpass
b) Highpass
c) Bandpass



RF Cafe - 5. What is the order of the filter shown to the right?

a) 2
b) 4
c) 6



RF Cafe - 6. What type of transmission line is shown to the right?

a) Coaxial
b) Stripline
c) Microstrip



RF Cafe - 7. What type of waveguide bend is shown to the right?

a) 90° Maxwell bend
b) 90° H-Plane bend
c) 90° E-Plane bend



8. What is the value of the resistor shown on to the right?

a) 6.2 kΩ, ±5%
b) 62 kΩ, ±5%
c) 62 kΩ, ±10%



9. What serious problem is commonly caused with lead-free, tin-alloy solders

a) Tin whiskers
b) Cold flowing
c) Spontaneous combustion



10. Which is the earliest RF Cafe logo?

a) RF Cafe -      b) RF Cafe -      c) RF Cafe -



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