Assignment 7 Chapter 7 : Land admin; mapping & geographic information Systems

Question 1

Which of the following statement BEST describes “enterprise solution” for GIS in an assessment office?

1. The assessment office fully integrates GIS into the CAMA system.
2. Seeking GIS solutions that address organizational needs, but also presents revenue-generating enterprising opportunities.
3. A whole system approach to data collection and analysis.
4. A government-wide approach that links multiple systems together, both assessment and non assessment.

Answer 1

Answer (4) A government-wide approach that links multiple systems together, both assessment and non assessment.

An enterprise solution looks beyond the assessment office to a government-wide approach linking many systems together including assessment and non-assessment applications.

Question 2

A photo image is distorted because the lens is not pointing at 90° to the ground.

This above statement refers to which one of the following types of optical distortion due to aerial photography?

1. Relief displacement
2. Camera and lens flaw
3. Tilt displacement
4. None of the above

Answer 2

Answer (3) Tilt displacement

Tilt displacement occurs when the aircraft is not flying on a perfectly level path, and the lens is not aiming straight downward at the time of exposure.

Question 3

Emma requires a computer mapping system.

She needs one which permits the mapping of cartographic features, as well as the use of overlapping map layers that each contain specific information.

She will need a database system which can store and manipulate the information that she gathers, but she will not be performing in-depth analysis between the different mapping layers.

Which of the following options would best suit her needs?

1. Computer-assisted drafting (CAD) systems.
2. Automated mapping / facilities management (AM/FM) systems
3. Coordinate geometry
4. Geographic information systems

Answer 3

Answer (2) Automated Mapping / Facilities Management (AM/FM) system.

The automated mapping/facilities management (AM/FM) system features sophisticated databases capable of storing and manipulating related attribute information.

It is limited in its ability to analyze relationships between different mapping layers other than through visual inspection of the overlapping layers.

Question 4

If you were surveying this property using the “metes and bounds” methods, which of the following options would be the first statement of description when surveying this property?

1. Beginning at the north-west corner of the lot, move 92.4 feet 60° to the south-east corner of the property
2. Beginning at the intersection of 2^nd Avenue and Wright Road, move 80 feet either due north or due east
3. Beginning at the reference point (north-east corner), move 126.2 due east to the north east corner of the property at 2^nd Avenue
4. Beginning from the reference point (brass disc) and facing north, move 22 feet 45° to the east, to the south-west corner of the property.

Answer 4

Answer (4) Beginning from the reference point (brass disc) and facing north, move 22 feet 45° to the east, to the south-west corner of the property.

The “metes and bounds” system describes the property using lines which are identified by length and compass bearing.

Options (1) and (3) are incorrect because these statements do not begin from a set
reference point that is not on the actual property.

Option (2) is incorrect because it is does not specify a single direction in which to proceed, and it does not identify an exact starting point – where exactly in this intersection do you start from?

For student’s reference, the property illustrated would be surveyed as follows.

Starting from the reference point (brass disc):

• move 22 feet 45° to the east (N 45° E), to the south-west corner of the property;
• move 80 feet due north to the north-west corner of the property;
• move 126.2 feet due east to the north-east corner of the property;
• move 92.4 feet 60° to the south-west (S 30° W) to the south-east corner of the property;
• move 80 feet due west to the south-west corner of the property, to close or “bound” the property.

Question 5

If the parcel of land was described using the “lot and block” method, which of the following statements is / are TRUE?

1. Description of property location is easier, as there is no need to refer to compass bearings and distance measurements.
2. Each lot is surveyed using the mete and bounds description, and this information is recorded onto a map to which the lot is referenced.
3. The legal description of this lot can be referenced to this map and referred to by number (e.g. Lot 22, Block 5, Map book 10, Page 20)
4. All of the statement are true

Answer 5

Answer (4) All of the statement are true.

The “lot and block” method is a simple way of referencing lots once they have been surveyed using the “metes and bounds” method. Information from the “metes and bounds” method is compiled and recorded onto a map, so there is no need to use compass bearings and distance measurements when referring to a plot of land.

Question 6

Two of the components of a GIS are the application engine and the user interface.

Which statement below is/are TRUE?

1. The user interface performs the data access and querying functions as requested by the user.
2. The main purpose of the user interface is to allow GIS specialist to use the system to its fullest potential.
3. The application engine performs all complex calculations and tasks that allow the user interface to function.
4. All of the above

Answer 6

Answer : (3) The application engine performs all complex calculations and tasks that allow the user interface to function.

The user interface is designed with the end-user in mind; its main goal is to provide
non-GIS specialists with access to GIS-based data while hiding the complex, behind-the-scenes querying and calculations of the application engine that makes the GIS operate.

Question 7

Bonnie describes her property in the following manner: She lives in a rustic cottage, high in the land of the green rolling hills.

Her property is bounded on the east by the highest hill in the region, from which she performs her morning yodel.

A babbling brook bounds her property to the west and provides clean drinking water.

A neighboring sheep farm borders the north of her property, and a valley lemon trees bounds the south of the property.

Which type of land description or land referencing system is she using?

1. The “bounded” description
2. The rural and agricultural system
3. The section and township system
4. The lot and block survey system

Answer 7

Answer (1) The “bounded” description.

The “metes and bounds” system is the earliest form of land description which describes the property by referencing the physical features by which the property is “bound”.

Question 8

A parcel of land within a given block has been split. However, under this parcel identification system, the parcel’s split is not recognizable from its identifiers.

In which of the following is the parcel identification system in use?

1. Consolidation coordinate parcel system
2. Computerized mapping system
3. Geographic parcel split system
4. Geographic coordinate (geocode) parcel system

Answer 8

Answer (4) Geographic coordinate (geocode) parcel system

Option (4) is the correct answer. In the geographic coordinate (geocode) system, parcel splits are identified by their coordinates, so it is not possible to identify a split from the geocode. If two parcels are created from one larger parcel, the two “new” parcels simply take on the new geographic coordinates. Consolidations use the coordinates of the newly combined parcel which may or may not be the same geocode as one of the older parcels.

Question 9

Which of the following describes a problem in aerial photography due to relief displacement?

1. Images are displaced with respect to the point directly below the camera; objects above the elevation of this point are displaced radially inward.
2. Objects at higher elevations appear larger.
3. Large objects are closer that they appear.
4. All of the above.

Answer 9

Answer (2) Objects at higher elevations appear larger.

Relief Displacement describes a problem in aerial photography where the photo image is distorted because the ground is not perfectly level.

Objects closer to the camera appear larger; objects further away appear smaller.

Objects are also distorted with respect to the point directly below the camera.

Option (1) is incorrect because objects above the point directly below the camera are displaced radially outward.

Option (2) is correct.

Question 10

Which of the following statements concerning GPS is FALSE?

1. Signals from a minimum of six positioning satellites are required for a GPS receiver to establish its position.
2. GPS is useful in map-making
3. GIS is substitute for GPS, in areas where satellite coverage is insufficient
4. As of 2009, the best GPS technology can provide locations within centimeters of its actual location.

Answer 10

Answer (1) Signals from a minimum of six positioning satellites are required for a GPS receiver to establish its position.

Signals from a minimum of THREE positioning satellites are required for a GPS receiver to establish its position.