GIS Quiz Questions with
All Correct Answers
A conformal projection preserves the property of:
a. relative size
b. Local shapes.
c. distances
d. None of the above - Answer-b. local shapes
Conformal projections preserve local shapes and angles, but distort relative surfaces
and distances
Which of the following statements is true about North American Datum (NAD)?
a. NAD83 is a newer datum than NAD27
b. NAD83 is based on a satellite-determined spheroid.
c. Maps based on NAD83 can register spatially with maps based on NAD27.
d. All of the above.
e. Only a and b. - Answer-e. only a and b
Maps based on NAD83 cannot register with maps based on NAD27, since they are
based on different spheroids. A geometrical transformation is needed. In the
conterminous US, the horiziontal shift can be as much as 100 meters
Which of the following statements is true?
a. A coordinate system is based on a map projection.
b. A map projection is based on a coordinate system.
c. Map projection and coordinate system are unrelated. - Answer-a. a coordinate
system is based on a map projection
The secant case means that a cylindrical projection has ___ line(s) of tangency:
a. 1
b. 2
c. 3 - Answer-b. 2
With the secant case, the surface of the globe and the envelop of the cylinder intersect,
creating 2 lines of tangency (parallels when the aspect is normal)
, Which coordinate does a false easting apply to?
a. X
b. Y - Answer-a. X
A false easting is to change the origin of the longitude coordinate
Which of the following statements is true?
a. Meridians are lines for measuring location in the E-W direction, and parallels are lines
for measuring location in the N-S direction.
b. Meridians are lines for measuring location in the N-S direction, and parallels are lines
for measuring location in the E-W direction.
c. Meridians are points for measuring location in the E-W direction, and parallels are
points for measuring location in the N-S direction.
d. Meridians are points for measuring location in the N-S direction, and parallels are
points for measuring location in the E-W direction. - Answer-a. meridians are lines for
measuring location in the E-W direction, and parallels are lines for measuring location in
the N-S direction
Which of the following is true about the vector data model?
a. The model uses x-, y-coordinates to store the geometry of spatial features.
b. The model uses points, lines and polygons to represent simple spatial features.
c. The choice of a geometric type to represent spatial features using the vector data
model depends on map scale.
d. All of the above.
e. Only a and b. - Answer-d. all of the above
Which of the following statements is NOT true about the polygon feature?
a. A polygon is a two-dimensional object.
b. A polygon has the properties of area and perimeter.
c. A polygon may form a hole within another polygon.
d. None of the above. - Answer-d. none of the above
A stream is more likely to be represented as a single line on a 1:100,000 scale map
than on a 1:24,000 scale map.
True
False - Answer-True
Which of the following is true about a line feature?
a. A line feature is made of lines
b. A line connects two end points.
c. The shape of a line is made of connected points.
All Correct Answers
A conformal projection preserves the property of:
a. relative size
b. Local shapes.
c. distances
d. None of the above - Answer-b. local shapes
Conformal projections preserve local shapes and angles, but distort relative surfaces
and distances
Which of the following statements is true about North American Datum (NAD)?
a. NAD83 is a newer datum than NAD27
b. NAD83 is based on a satellite-determined spheroid.
c. Maps based on NAD83 can register spatially with maps based on NAD27.
d. All of the above.
e. Only a and b. - Answer-e. only a and b
Maps based on NAD83 cannot register with maps based on NAD27, since they are
based on different spheroids. A geometrical transformation is needed. In the
conterminous US, the horiziontal shift can be as much as 100 meters
Which of the following statements is true?
a. A coordinate system is based on a map projection.
b. A map projection is based on a coordinate system.
c. Map projection and coordinate system are unrelated. - Answer-a. a coordinate
system is based on a map projection
The secant case means that a cylindrical projection has ___ line(s) of tangency:
a. 1
b. 2
c. 3 - Answer-b. 2
With the secant case, the surface of the globe and the envelop of the cylinder intersect,
creating 2 lines of tangency (parallels when the aspect is normal)
, Which coordinate does a false easting apply to?
a. X
b. Y - Answer-a. X
A false easting is to change the origin of the longitude coordinate
Which of the following statements is true?
a. Meridians are lines for measuring location in the E-W direction, and parallels are lines
for measuring location in the N-S direction.
b. Meridians are lines for measuring location in the N-S direction, and parallels are lines
for measuring location in the E-W direction.
c. Meridians are points for measuring location in the E-W direction, and parallels are
points for measuring location in the N-S direction.
d. Meridians are points for measuring location in the N-S direction, and parallels are
points for measuring location in the E-W direction. - Answer-a. meridians are lines for
measuring location in the E-W direction, and parallels are lines for measuring location in
the N-S direction
Which of the following is true about the vector data model?
a. The model uses x-, y-coordinates to store the geometry of spatial features.
b. The model uses points, lines and polygons to represent simple spatial features.
c. The choice of a geometric type to represent spatial features using the vector data
model depends on map scale.
d. All of the above.
e. Only a and b. - Answer-d. all of the above
Which of the following statements is NOT true about the polygon feature?
a. A polygon is a two-dimensional object.
b. A polygon has the properties of area and perimeter.
c. A polygon may form a hole within another polygon.
d. None of the above. - Answer-d. none of the above
A stream is more likely to be represented as a single line on a 1:100,000 scale map
than on a 1:24,000 scale map.
True
False - Answer-True
Which of the following is true about a line feature?
a. A line feature is made of lines
b. A line connects two end points.
c. The shape of a line is made of connected points.
