Practice Quiz

ASVAB Science and Tech Practice Questions - Question List

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36. For a manufacturing process, the cutting edges of the separating tool should typically have which of the following characteristics?
  1. They should be harder than the material being cut.
  2. They should be cleaner than the material being cut.
  3. They should be more porous than the material being cut.
  4. They should be more flexible than the material being cut.
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37. During World War II, signal lights were used to send Morse code messages between ships. A sailor would open and close a shutter over a light source to send “dots” and “dashes” of lightto another ship. The sailor performed the function of which component of a communication system?
  1. decoder
  2. destination
  3. encoder
  4. receiver
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38. Telephone circuits were originally made of copper. Which of the following has replaced much of the copper circuitry that connected telephone switching stations over long distances?
  1. fiberoptic cables
  2. reinforced plastics
  3. superconductors
  4. tungsten wires
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39. Which of the following causes the greatest resistance to water flowing through a PVC piping system?
  1. elbows
  2. gaskets
  3. insulation
  4. rust
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40. Which of the following functions can a variable resistor perform?
  1. storing electrical charge
  2. adjusting light intensity
  3. creating electrical energy
  4. controlling current direction
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