How many NAVSTAR satellites do you need in view at a minimum to provide your GPS location?

• 2

• 5

• 4

• 3

The User segment consists of anybody using GPS

• True

• False

Psuedoranging is an estimation of the distance you are from a GPS satellite

• True

• False

Differential can be delivered which of the following ways?

• Satellite

• Microwaves

• Radio

• Cellular

True or False: The higher the DOP value the better

• True

• False

The Control Segment DOES NOT consist of the Dept of Defense

• True

• False

Point (47° 36' 2.1852'' N   122° 20' 12.7824'' W) is how far away from (46° 36' 2.1852'' N   122° 20' 12.7824'' W)

• 69 miles

• 60 miles

• 68 miles

• 70 miles

True or False: RTK would provide the best accuracy when mapping out an underground line

• True

• False

Your accuracy seems to get worse the same time of day, 2 days in a row. What are some ways you can maintain a more reliable mapping signal? (select all that apply)

• Add another GPS constellation such as GLONASS

• Don't do any mapping for the day

• Survey another time of the day

• Stop using RTK and use SBAS

You are standing at 36° 24' 52.34'' N   98° 20' 56.25'' W and want to get to 47° 36' 2.1852'' N   122° 20' 12.7824'' W.

In what general direction do you head?

• Northeast

• Northwest

• Southeast

• Southwest