UPSC Previous Year Question | Prelims GS | 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 smart-phone 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?

  1. Only one
  2. Only two
  3. All three
  4. None

Answer

Correct Answer

All three

Explanation

Accelerometers are used in all three: airbag deployment on sudden deceleration, detecting free fall to protect hard drives, and detecting device tilt/orientation for screen rotation.

Topics: accelerometer, motion detection, science and technology, sensors