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UPSC Prelims 2023 Paper-1 📅 28 May, 2023

Consider the following actions:
  • 1. Detection of car crash/collision which results in the deployment of airbags almost instantaneously.
  • 2. Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive.
  • 3. Detection of the tilt of the smartphone which results in the rotation of display between portrait and landscape mode.
In how many of the above actions is the function of accelerometer required?

A
Only one
B
Only two
C
All three
D
None
Result Summary
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UPSC Prelims
2023 • 28 May, 2023 • Paper-1
Consider the following actions:
  • 1. Detection of car crash/collision which results in the deployment of airbags almost instantaneously.
  • 2. Detection of accidental free fall of a laptop towards the ground which results in the immediate turning off of the hard drive.
  • 3. Detection of the tilt of the smartphone which results in the rotation of display between portrait and landscape mode.
In how many of the above actions is the function of accelerometer required?
Correct Answer
All three
Subject: Science & Tech.Context: Everyday Technology.Details: An accelerometer measures proper acceleration. All three actions rely on this sensor. It detects t......
Ref/Book : UPSC Prelims 2023
Ref. Subject Science & Tech
Chapter -
Ref. Topic Sensors and Devices
Pg. No -
💡 Analysis & Explanation
Subject ▼
Science & Tech.
Context ▼
Everyday Technology.
Details ▼
An accelerometer measures proper acceleration. All three actions rely on this sensor. It detects the sudden deceleration during a car crash to trigger airbags; it senses the zero-gravity state of a falling laptop to park the hard drive head; and it constantly calculates the device's angle relative to Earth's gravity to rotate a smartphone's screen.
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