5 Flashcards
1
Q
This may be a rough sketch or any official base plan of a property.
A
Sketch Plan
2
Q
A sketch plan of a property based on the relocation survey.
A
Relocation Plan
3
Q
From subdivision survey or splitting a tract of land into smaller parcels
A
Subdivision Plan
4
Q
Re-mapping of two or more adjacent lots or parcels of land, combining them into one larger parcel.
A
Consolidation Plan
5
Q
- Angles between adjacent
lines in a closed polygon. - They may be measured
clockwise or counterclockwise. - Re-entrant angles are
interior angles greater than
180 degrees. - The sum of the interior angle
of any polygon is equal to
(n - 2)(180 degrees), where
n is the number of sides.
A
Interior Angles
6
Q
- Angles located outside a
closed polygon.
A
Exterior Angles
7
Q
- The angles between a line and the prolongation of the preceding
line. - May be turned to the right (clockwise) or turned to the left
(counterclockwise) and appended with letters R or L. - Right deflections have the opposite signs of left deflections
- Positive signs normally defines angle with deflection to the right.
- May have values 0 to 180 degrees but often not used to angles
greater than 90 degrees. - In a close polygon, the algebraic sum of the deflection angle should
always equal 360 degrees.
A
Deflection Angles
8
Q
- These are angles measured clockwise from the preceding line to the
succeeding line. - This is also called Azimuths.
A
Angles to the Right
9
Q
- Acute horizontal angles between the reference meridian and the line.
- Contains angles that are between 0 to 90 degrees.
- It always starts on either N or S and will turn E or W.
- Bearings can be measured in reference to True or Magnetic meridian.
A
Bearings
10
Q
- The angle between the meridian and the line measured clockwise.
- Contains angles that are between 0 to 360 degrees.
- Reference meridian can be the N or S.
- Azimuths can be true, magnetic, grid or assumed.
A
Azimuth
11
Q
An imaginary line between the North Pole and the South Pole, drawn on maps to help to show the position of the place.
A
Meridian
12
Q
- Also called astronomic or geographic meridian.
- This line passes through the
geographic north and south of
the earth and the observer’s
position. - The generally adapted
reference line in surveying. - The direction of true meridian is
invariable and unchanged
regardless of time. - True meridian is used for
markings of land boundaries.
A
True Meridian
13
Q
- A line of reference parallel to the
magnetic lines of force. - Magnetic meridian is not parallel
to the True meridian. - This utilizes the magnetic needle
of a compass to locate the
magnetic north. - Used in rough surveys since the
magnetic meridian changes
constantly along with the
location of the magnetic poles.
A
Meridian Magnetic
14
Q
- A fixed line of reference parallel to the central meridian of a system plane rectangular coordinates.
A
Grid Meridian
15
Q
- This is an arbitrary chosen reference point
taken for convenience. - This utilizes a well defined and permanent
reference point. - Applicable plane surveys of limited extent
A
Assumed Meridian