ICT is used to control and monitor everyday activities. Which of the following activities are most…
Sensors detect physical conditions such as movement, pressure or infrared radiation and feed the data to a control system. A burglar alarm and automatic doors both rely on…
Choose your answer
ICT is used to control and monitor everyday activities. Which of the following activities are most likely to use sensors?
A. Designing a master slide for presentation
B. Activating a burglar alarm
C. Opening automatic doors
D. Creating a spreadsheet
Answer and explanation
Correct answer B
Sensors detect physical conditions such as movement, pressure or infrared radiation and feed the data to a control system. A burglar alarm and automatic doors both rely on such sensors, while designing a slide or creating a spreadsheet involves no sensing at all.
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