GPS Study Quiz

Question #1 GPS (as normally available to the civilian user) provides a nominal fix accuracy of
    A)100 meters with Selective Availability enabled.
    B)30 meters.
    C)50 feet.
Question #2 GPS requires use of
    A)three satellites for an earth surface fix.
    B)four satellites for a 3D fix.
    C)both (a) and (b).
Question #3 GPS
    A)has no system errors.
    B)is self-correcting for timing errors.
    C)use is always preferable to LORAN C.
Question #4 GPS keeps time
    A)with atomic clocks in each satellite.
    B)with atomic clocks in each receiver.
    C)both (a) and (b).
Question #5 DGPS is
    A)a means for using GPS in your personal computer.
    B)a USCG program to use GPS to provide improved position accuracy.
    C)a scheme tp provide GPS data in a digital format.
Question #6 The chart datum used by a GPS navigation set
    A)is always WGS-84.
    B)is always the same.
    C)must be the same as for the chart being used.
Question #7 The trend in modern GPOS receivers is towards
    A)five or six channels.
    B)single channels.
    C)multiplexing.
Question #8 Receiver acquisition of GPS satellites
    A)can take up to 30 minutes for a cold start.
    B)usually takes less than one minute from a warm start.
    C)both (a) and (b).

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