UPSC CSE Prelims
Question 4
In which of the following areas can GPS technology be used ?
- Mobile phone operations
- Banking operations
- Controlling the power grids
Select the correct answer using the code given below :
View correct answer and explanation
Correct answer: D
Correct Option: D
Explanation: GPS provides precise timing as well as position, supporting location-based phones, synchronised banking networks and coordinated electricity grids. All three sectors can use it.
Statement/Pair-wise Analysis:
Statement/Item 1: Correct - Smartphones use GPS/GNSS for navigation and location-dependent services.
Statement/Item 2: Correct - Banking and payment networks can use GPS-derived precise timestamps for synchronisation.
Statement/Item 3: Correct - Power grids use satellite timing for phasor measurements, monitoring and coordination.
Option-wise Analysis:
A: Incorrect - omits correct statement/items 2, 3.
B: Incorrect - omits correct statement/item 1.
C: Incorrect - omits correct statement/item 2.
D: Correct - includes all and only the true statements/items.