In which of the following areas can GPS technology be used ?
- 1.Mobile phone operations
- 2.Banking operations
- 3.Controlling the power grids
Select the correct answer using the code given below :
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Answer: D. GPS gives both location and very precise time signals. Mobile networks, banking systems (for time-stamping transactions) and power grids (for synchronising the grid) all use GPS timing. So 1, 2 and 3.
Watch for: Students think of GPS only for maps and forget its precise clock signal.
Why the other options are wrong
- A. Wrong because banking and power grids also use GPS timing.
- B. Wrong because mobile phones also use GPS.
- C. Wrong because banking also uses GPS time-stamps.
Source to check: US Government GPS website (gps.gov), 'Applications: Timing'
Answer from the official UPSC key. Written and fact-checked by AI against the official key. Spotted a mistake? Report it.