Q 01/05
A) Global Positioning System
B) General Position Satellite
C) Geographic Point Service
D) Ground Position Signal
Answer · why
It is one of several global navigation satellite systems, or GNSS.
Q 02/05
A) The European Union
B) The United States
C) Russia
D) China
Answer · why
It is treated as a national resource but is freely accessible to anyone with a receiver.
Q 03/05
A) The Navy
B) The Air Force
C) The Space Force
D) The Army
Answer · why
Mission Delta 31 operates it from Schriever Space Force Base near Colorado Springs.
Q 04/05
A) 100
B) 32
C) 50
D) 24
Answer · why
Between 24 and 32 are usually flying, so several are visible from any point with a clear horizon.
Q 05/05
A) Four
B) One
C) Two
D) Eight
Answer · why
Three for the position coordinates and one more to solve for the receiver's clock error.
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