LSIT Plan and Map Reading 3

Question 1

On a subdivision plat, what does 'L=125.43' typically refer to when associated with a curved boundary?

Accepted Answer

The arc length of the curve

Answer

The label 'L=' on a curved boundary denotes the arc length along the curve between the two endpoints.

Question 2

Which map projection is commonly used for state plane coordinate systems in US surveys?

Accepted Answer

Transverse Mercator and Lambert Conformal Conic

Answer

US State Plane Coordinate Systems use either Transverse Mercator (for north-south zones) or Lambert Conformal Conic (for east-west zones).

Question 3

A 'Point of Curvature' (PC) on a highway plan marks which location?

Accepted Answer

Where a tangent transitions into a horizontal curve

Answer

The PC is the point where a straight tangent section ends and a circular horizontal curve begins.

Question 4

On a survey map legend, a symbol showing a filled circle at a corner followed by a pipe description typically represents what?

Accepted Answer

A found or set iron pipe or monument

Answer

Filled circles or squares with pipe/rod descriptions in a legend denote survey monuments, either found during fieldwork or set by the surveyor.

Question 5

What information does the 'basis of bearings' note on a survey plan provide?

Accepted Answer

The reference direction from which all bearings on the map are derived

Answer

The basis of bearings statement identifies the reference line and its direction used to establish all other bearings shown on the survey.

(LSIT) Land Surveyor in Training Practice Test