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  4. ASVAB Section 5: Electronic Information

Free ASVAB Section 5: Electronic Information Exam Braindumps
ASVAB Section Five : Electronic Information Questions 71–75 (page: 16)

Updated On: 9-Feb-2026
Page 16 of 37
PDF with 180 Questions

Radio frequency amplifiers are used in __________________.

  1. audio amplifiers
  2. differential amplifiers
  3. operational amplifiers
  4. receivers and transmitters

Answer(s): D

Explanation:

Radio frequency amplifiers are used in receivers and transmitters to amplify frequencies above the range of sounds audible to humans.



A crystal microphone uses _____________.

  1. the piezoelectric effect
  2. the Doppler effect
  3. magnetic wavicles to operate
  4. a permanent magnet for resonance

Answer(s): A

Explanation:

A crystal microphone relies on the piezoelectric effect, where a pressure on a crystal produces an electric current.



If both the resistors shown (R1 and R2) in the diagram below are of equal size, what is the voltage at the arrow?

  1. 9V
  2. 12V
  3. 18V
  4. 24V

Answer(s): B

Explanation:

The total voltage drop of the circuit must equal the voltage across the battery, which is 24V. Because the resistors are both the same size, each resistor creates half of the total voltage drop: 24/2 = 12. Therefore, the voltage at the arrow is 12V.



A crossover network is used to _____________.

  1. direct the proper frequency range to the right speaker
  2. eliminate noise
  3. filter out high frequencies
  4. filter out low frequencies

Answer(s): A

Explanation:

A crossover network is designed to make sure that the right frequencies get to a speaker so it can reproduce them better.



The klystron is used in _________________.

  1. low-frequency transmitters
  2. radar units
  3. audio frequency amplifiers
  4. frequency detectors

Answer(s): B

Explanation:

The klystron is used as a frequency source in microwave units – from a microwave oven for the kitchen to a radar unit for an aircraft



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