Accelerometer function — airbag deployment, laptop hard drive shutdown, smartphone display rotation
Question
Consider the following actions: In how many of the above actions is the function of accelerometer required?
- 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 smart-phone which results in the rotation of display between portrait and landscape mode
Options
Only one
Only two
All three
None
Explanation
All three actions rely on an accelerometer. This sensor measures proper acceleration. It detects the sudden extreme deceleration of a car crash, the zero-G acceleration of a laptop in free-fall (to park the disk head and prevent data loss), and the constant pull of gravity to orient a smartphone's display.
Answer: (c).
Question details
Year
2023
Paper
GS Paper 1
Question
Q54
Subject
Science & Technology
Sub-topic
Computing, AI & IT
Type
How-many counting
Difficulty
Easy
Nature
Static
Source hint
NCERT Physics Cl.11 / MEMS Accelerometer Crash Sensors
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