UPSC Prelims 2019 · GS Paper I
Question 95: Science and Technology
In the context of wearable technology, which of the following tasks is/are accomplished by wearable devices?
- 1.Location identification of a person
- 2.Sleep monitoring of a person
- 3.Assisting the hearing impaired person
Select the correct answer using the code given below.
AnswerUPSC’s answer is (d).
All three tasks are done by wearable devices. Smartwatches and fitness bands use GPS to identify a person's location, and they track sleep through motion and heart-rate sensors. Wearable hearing aids assist people with a hearing impairment. Wearables also record steps and heart rate, which is why they are used in fitness and health monitoring.
- 1. Wearables use GPS to identify location.
- 2. Wearables track sleep.
- 3. Wearable hearing aids assist the hearing impaired.
How you could have got this
- If you were sure statement 1 is correct, (b) and (c) go: each of them leaves 1 out.
What you needed to know: Wearables use GPS to identify location.
- Then, if you were sure statement 2 is correct, (a) goes: it leaves 2 out.
What you needed to know: Wearables track sleep.
Only (d) is left. You didn’t need statement 3.
Which options go is worked out from UPSC’s key and the options, not by a model.
Why each option is right or wrong
- (a) Wearables also monitor sleep and assist hearing.
- (b) Wearables also identify location.
- (c) Wearables also identify location and monitor sleep.
- (d) Correct: all three tasks are done by wearables.
Answer: UPSC’s key. Explanation: written by UPSC Grade, not by UPSC.
Source: UPSC, Civil Services (Preliminary) Examination 2019, General Studies Paper I, Series A. The paper on upsc.gov.in.