midterm 2

Question 1

This overlay tool writes to the output feature class features or portions of features which overlap in all feature classes.
a) update
b) union
c) symmetrical difference
d) identity
e) intersection

Answer 1

Intersect probably

Question 2

3. Which of the following about NDVI is false?
   a) NDVI can be used to assess vegetation health
   b) NDVI utilizes more than one band of electromagnetic radiation.
   c) NDVI quantifies plant vigour.
   d) A healthy plant re-emits less solar radiation in the near-infrared spectrum than an un-healthy plant.
   e) Healthy plants absorb more electromagnetic radiation in the PAR (photosynthetically active radiation) spectrum than do unhealthy plants.

Answer 2

d) A healthy plant re-emits less solar radiation in the near-infrared spectrum than an un-healthy plant.

Question 3

12. The longest continuous record of the Earth’s surface is from
    a) V2 rocket
    b) Aircraft based aerial photography
    c) World War I pidgeon photographs
    d) Landsat
    e) Earth’s Moon

Answer 3

d) Landsat

Question 4

15. In which of the following overlay tools is it NOT important to make explicit which is the input featureclass and which is the overlay featureclass?
    a) update
    b) symmetrical difference
    c) identity
    d) erase
    e) clip

Answer 4

b) symmetrical difference

Question 5

16. Which two tools will produce identical spatial objects?
    a) identity and update
    b) clip and intersect
    c) union and identity
    d) update and union
    e) erase and symetrical difference

Answer 5

b) clip and intersect

Question 6

20. Which is true?
    a) Increasing carbon dioxide decreases absorption.
    b) Scattering decreases with increasing humidity
    c) Scattering increases with increasing particle load.
    d) Increasing scattering decreases path radiance.
    e) Scattering increases with increasing wavelength.

Answer 6

c) Scattering increases with increasing particle load.

Question 7

22. This is the fundamental descriptive feature of a waveform
    a) atmospheric condition
    b) emission
    c) diffuse reflection
    d) electromagnetic radiation
    e) wavelength

Answer 7

e) wavelength

Question 8

35. All maps require
    a) qualitative and quantitative data
    b) generalization, simplification and abstraction
    c) reference and thematic aspects
    d) a lack of feature distortion
    e) all data types

Answer 8

b) generalization, simplification and abstraction

Question 9

36. This classification schema illustrates how much a feature’s attribute value varies from the mean.
    a) standard deviation
    b) natural breaks (Jenks)
    c) quantile
    d) equal interval
    e) defined interval

Answer 9

a) standard deviation

Question 10

37. Which is false? Positional error …
    a) only refers to 2D coordinates
    b) accuracy is a measurement of the variance of map features and the true position
    c) can be described by probability distributions
    d) can be estimated by examining gaps and spikes
    e) will vary depending on the types of objects being observed

Answer 10

a) only refers to 2D coordinates

Question 11

40. the overlay tool that provides the most spatial and attribute information is
    a) identity
    b) update
    c) union
    d) symmetrical difference
    e) intersect

Answer 11

c) union

Question 12

42. Which of the following tools will produce an attribute table in the output featureclass that only contains attributes from the input featureclass?
    a) update
    b) intersect
    c) clip
    d) identity
    e) union

Answer 12

c) clip

Question 13

Which of the following is false. Remote sensing systems …
a) can detect diffuse reflections of actively illuminated surfaces.
b) can sometimes only provide information during daylight hours.
c) cannot penetrate cloud coverage.
d) can detect radiation that is emitted from surface features.
e) can detect diffusley reflected solar radiation.

Answer 13

c) cannot penetrate cloud coverage.

Question 14

45. Each class in this standard classification scheme contains an equal number of features.
    a) standard deviation
    b) quantile
    c) defined interval
    d) natural breaks (Jenks)
    e) equal interval

Answer 14

b) quantile

Question 15

46. This spatial join type is valid for any combination of geometry type.
    a) within
    b) intersect
    c) are identical to
    d) have their centre in
    e) contain

Answer 15

d) have their centre in??
or intersect?

Question 16

48. An atmospheric window describes a wavelength range with which of the following characteristics?
    a) low transmission
    b) high emission and low tranmission
    c) high absorption and low tranmission
    d) minimal emission and low tranmission
    e) minimal absoption and high transmission

Answer 16

e) minimal absoption and high transmission

Question 17

50. Which of the following is an example of an ‘active’ sensor?
    a) reflected solar radiation
    b) path irradiance
    c) thermal infrared
    d) imaging radar
    e) interaction process

Answer 17

c) thermal infrared

Question 18

51. Assume objects with the following values: 10, 10, 20, 30, 40 ,40. If a quantile classification scheme was used with 3 categories, how many object would be in the lowest category?
    a) This question cannot be answered
    b) 1
    c) 2
    d) 0
    e) 3

Answer 18

c)2

Question 19

What table association supports all cardinality?
A) Within
B) Select
C) Relate
D) Ordinal
E) Join

Answer 19

C) Relate

Question 20

53. Which primitive object types can dissolve be performed on?
    a) line, polygon
    b) point only
    c) line only
    d) point, line, polygon
    e) polygon only

Answer 20

d) point, line, polygon

Question 21

58. The typical symbol of a geospatial tool in process modeling is a
    a) circle
    b) oblate spheroid
    c) triangle
    d) arrow
    e) rectangle

Answer 21

e) rectangle