Tracking Capabilities of Satellites & Function of GPS

Q. What are the uses of the Global Positioning System or GPS?

1. Getting directions to a place.
2. Sharing one’s current location with friends or family.
3. Calculating exact time to reach any place.
4. Getting weather forecast.

Q. A GPS relies on the signals from a system of 24 satellites placed at _____ different orbits around the Earth.

1. 6

Q. Which among the following statement(s) do you think might be true about the Global Positioning System (GPS)?

1. The altitude of the GPS satellites is less than 2000 km from the Earth.
2. A GPS receiver must receive signals from at least two of all the satellites to calculate an accurate location.
3. The satellites use trilateration mechanism to find an accurate location.
4. A GPS system requires a GPS receiver, which relies on the signals from a system of 24 active satellites.