RPLS Equipment and Tools Knowledge 3

Question 1

In GPS/GNSS surveying, what does 'multipath error' refer to?

Accepted Answer

GPS signals arriving at the antenna via reflections from nearby surfaces

Answer

Multipath error occurs when GPS signals reflect off buildings, vehicles, or terrain before reaching the antenna, creating false path lengths and degrading positional accuracy.

Question 2

A 'robotic total station' differs from a conventional total station primarily in that it:

Accepted Answer

Can automatically track a prism and be operated by a single surveyor

Answer

A robotic total station uses motorized drives and automated target recognition to follow a moving prism, allowing one person to simultaneously operate the rod and instrument.

Question 3

The 'C-factor' in differential leveling refers to:

Accepted Answer

The collimation error of the level instrument

Answer

The C-factor (or collimation error) is the angular deviation of the line of sight from a truly horizontal plane in a level instrument, corrected by the peg test.

Question 4

Which GNSS constellation is operated by the European Union?

Accepted Answer

Galileo

Answer

Galileo is the global navigation satellite system operated by the European Union and the European Space Agency, designed to provide independent positioning capability.

Question 5

What is the function of a 'data collector' (field computer) in modern total station surveying?

Accepted Answer

It stores observations, runs coordinate geometry calculations, and controls robotic instruments

Answer

A data collector records field observations, performs on-the-fly coordinate geometry, guides instrument operation, and transfers data to office software for processing.

(RPLS) Registered Professional Land Surveyor Practice Test

(RPLS) Registered Professional Land Surveyor Practice Test

RPLS Equipment and Tools Knowledge 3