Practice Quiz

ASVAB Science and Tech Practice Questions - Question List

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66. Which of the following is an example of casting?
  1. A steel rod is heated and then rapidly cooled in a tank of water.
  2. A molten alloy is poured into a mold where it cools and hardens.
  3. A plastic pellet is forced through a die into a long, uniform shape.
  4. A metal sheet is passed through smooth rollers to yield a curved piece.
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67. Which of the following statements best describes the functioning of an encoder in a mobile phone?
  1. an antenna captures a signal
  2. an LCD shows the number being dialed
  3. a microphone converts sound to an electrical signal
  4. a digital signal processor holds frequently dialed numbers
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68. Which of the following is most likely to require direct current (DC) for proper operation?
  1. a blender
  2. a flashlight
  3. an electric heater
  4. a microwave oven
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69. Which of the following examples describes a nonrenewable energy system?
  1. Solar panels use energy from the Sun to heat a home.
  2. Geothermal energy is used to heat water for a building.
  3. Wind force turns windmill blades connected to a generator to produce electricity.
  4. Coal is used to convert water into steam that turns turbine blades to produce electricity.
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70. An automobile company plans to develop an electric car to sell in urban areas. Which of the following will help the company evaluate the potential market for these cars?
  1. field tests
  2. scale models
  3. prototype designs
  4. consumer surveys
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