FS FS - Fundamentals of Surveying GPS and GNSS Technology 1

Question 1

What does GNSS stand for in satellite navigation?

Accepted Answer

Global Navigation Satellite System

Answer

GNSS stands for Global Navigation Satellite System, an umbrella term covering all satellite navigation constellations worldwide.

Question 2

A minimum of how many satellites must be visible for 3D GPS positioning?

Accepted Answer

4

Answer

At least 4 satellites are required for 3D positioning to solve for x, y, z coordinates and receiver clock error simultaneously.

Question 3

What does DOP stand for in GPS accuracy assessment?

Accepted Answer

Dilution of Precision

Answer

DOP (Dilution of Precision) describes how satellite geometry affects the accuracy of a GPS position fix.

Question 4

Which GPS observation method provides the highest accuracy for control surveying?

Accepted Answer

Static differential GPS

Answer

Static differential GPS provides the highest accuracy by collecting data over extended occupation periods at known and unknown stations simultaneously.

Question 5

What is the carrier wave frequency of the GPS L1 civilian signal?

Accepted Answer

1575.42 MHz

Answer

The GPS L1 carrier frequency is 1575.42 MHz, which carries the C/A code used by civilian receivers.

FS - Fundamentals of Surveying Exam Practice Test

FS - Fundamentals of Surveying Exam Practice Test

FS FS - Fundamentals of Surveying GPS and GNSS Technology 1