GISP Actual Questions and Correct Answers
Q1
Associating a map (such as a pdf without spatial information) or image (such as an aerial image
without spatial information) with spatial locations.
Answer: Georeferencing
Q2
Consisting of multiple points, points come in pairs that match the spatial location with a point
on an unreferenced image or map.
Answer: Control Points
Q3
A coordinate-based local, regional or global system used to locate geographical entities.
Answer: Spatial Reference System (SRS) or Coordinate Reference System (CRS)
Q4
It's a three-dimensional coordinate system with a well defined origin (the center of mass of the
Earth) and three orthogonal coordinate axes (X, Y, Z).
Answer: International Terrestrial Reference System (ITRS)
Q5
Transforming coordinates from a curved earth to a flat map.
Answer: Map Projection
Q6
A global coordinate system - UTM zones are 6 degrees.
Answer: Universal Transverse Mercator (UTM)
Q7
Model of the Earth as a spheroid (2 components, reference ellipsis and a set of survey points
both the shape of the spheroid and its position relative to the Earth).
Answer: Horizontal Datum
, Q8
Reference point for elevations of surfaces and features on the Earth - could be based on tidal,
seas levels, gravimetric, based on a geoid.
Answer: Vertical Datum
Q9
Gravity based geodetic datum in North America.
Answer: NAVD88
Q10
Set of control whose geometric relationships are known, either through measurement or
calculation.
Answer: Geodetic Datum
Q11
Reference coordinate system used by the Global Positioning System (GPS).
Answer: WGS - World Geodetic System
Q12
Spatial reference system ID numbers, including EPSG codes defined by the International
Association of Oil and Gas Producers.
Answer: SRID Integer
Q13
Distance, Direction, Shape, Area
Answer: 4 Distortions
Q14
Preserves shape and direction, area gets distorted - projecting Earth onto a cylinder tangent to
a meridian.
Answer: Mercator Projection
Q1
Associating a map (such as a pdf without spatial information) or image (such as an aerial image
without spatial information) with spatial locations.
Answer: Georeferencing
Q2
Consisting of multiple points, points come in pairs that match the spatial location with a point
on an unreferenced image or map.
Answer: Control Points
Q3
A coordinate-based local, regional or global system used to locate geographical entities.
Answer: Spatial Reference System (SRS) or Coordinate Reference System (CRS)
Q4
It's a three-dimensional coordinate system with a well defined origin (the center of mass of the
Earth) and three orthogonal coordinate axes (X, Y, Z).
Answer: International Terrestrial Reference System (ITRS)
Q5
Transforming coordinates from a curved earth to a flat map.
Answer: Map Projection
Q6
A global coordinate system - UTM zones are 6 degrees.
Answer: Universal Transverse Mercator (UTM)
Q7
Model of the Earth as a spheroid (2 components, reference ellipsis and a set of survey points
both the shape of the spheroid and its position relative to the Earth).
Answer: Horizontal Datum
, Q8
Reference point for elevations of surfaces and features on the Earth - could be based on tidal,
seas levels, gravimetric, based on a geoid.
Answer: Vertical Datum
Q9
Gravity based geodetic datum in North America.
Answer: NAVD88
Q10
Set of control whose geometric relationships are known, either through measurement or
calculation.
Answer: Geodetic Datum
Q11
Reference coordinate system used by the Global Positioning System (GPS).
Answer: WGS - World Geodetic System
Q12
Spatial reference system ID numbers, including EPSG codes defined by the International
Association of Oil and Gas Producers.
Answer: SRID Integer
Q13
Distance, Direction, Shape, Area
Answer: 4 Distortions
Q14
Preserves shape and direction, area gets distorted - projecting Earth onto a cylinder tangent to
a meridian.
Answer: Mercator Projection
