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:

1. 1 only
2. 2 and 3 only
3. 1 and 3 only
4. 1, 2 and 3

Explanation

Option (d) is correct

• GPS (Global Positioning System) is a satellite-based navigation system that provides accurate location, time, and velocity data anywhere on Earth. Here’s how it works and where it’s used:
• Functionality: GPS relies on a network of satellites orbiting the Earth. At any given time, a GPS receiver (like the one in your phone) connects with multiple satellites to calculate its exact position. The system measures the time it takes for signals to travel from satellites to the receiver, determining distance and location.
• Key Uses:
  • Mobile phone operations: GPS helps with navigation, location-based services, and emergency assistance.
  • Banking operations: It provides precise time stamps for financial transactions to prevent fraud and ensure accurate data logging.
  • Controlling power grids: Applying GPS positioning and navigation technology to power systems， realise precise navigation of power equipment, improve power system automation of routine works, and enhance working efficiency.

Answer: (d) 1, 2 and 3; Difficulty Level: Easy