Introduction to Sensors in Intelligent Infrastructure

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Questions and Answers

Which of the following correctly describes a direct sensor?

  • A sensor that converts a stimulus into a mechanical signal
  • A sensor that converts a stimulus into a thermal signal
  • A sensor that converts a stimulus into a chemical signal
  • A sensor that converts a stimulus into an electrical signal or modifies an electrical signal using a physical effect (correct)

What is the primary difference between a sensor and a transducer?

  • A sensor is a type of transducer, but a transducer is not necessarily a sensor
  • There is no difference; the two terms are used interchangeably (correct)
  • A sensor is used for converting energy while a transducer is used for sensing purposes
  • A sensor is used for sensing purposes while a transducer is used for converting energy

Which of the following is an incorrect type of energy?

  • Acoustic
  • Magnetic (correct)
  • Electrical
  • Thermal

What is the role of a sensor in an intelligent structure?

<p>To convert a stimulus into an electrical signal or modify an electrical signal using a physical effect (A)</p>
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Which of the following is not a component of an intelligent structure?

<p>Transducers (A)</p>
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Which of the following is not a type of sensor by complexity?

<p>Primary sensor (B)</p>
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Which term is more popular in the USA for sensing purpose?

<p>Sensor (D)</p>
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What is the primary function of a transducer in a system?

<p>To convert energy from one form to another (A)</p>
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Which of the following is not a type of energy that a sensor can measure?

<p>Gravitational (D)</p>
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Which of the following is not a common use of transducers?

<p>In data processing units (B)</p>
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