Esri GIS Fundamentals Foundation Certification 2201:
Questions With Easy-to-Understand Solutions
How do you measure in ArcGIS Pro? Right Ans - 1) Open the ribbon map
tab
2) Under "Inquiry", click "Measure"
How do you find map units on ArcGIS? Right Ans - In the Contents pane,
right-click the map (where the layers are stored), and choose properties
Who formalized the system of what we today call Latitude and Longitude?
Right Ans - Hipparchus
What is another name for Latitude and Longitude? Right Ans - Parallels and
Meridians (based on 360 degrees)
What is the Equivalent to 360 Degrees (in terms of Lat and Long)? Right
Ans - - Each degree is divided into 60 min
- Each min is divided into 60 sec
Lines of Latitude Right Ans - - Parallel
- Run East and West
- Measure the distances from north or south of the Equator
- THE SIDEWAYS LINES
Lines of Longitude Right Ans - - Run North and South
- Intersect at the poles
- Measure distances to the east and west of the Prime Meridian
- THE LINES GOING UP-AND-DOWN
The Graticule Right Ans - The network of intersecting lines of lat and long
Great Circle Right Ans - Lines of Latitude - A circle that divides the earth
into two equal halves - the EQUATOR
How are degrees of latitude measured? Right Ans - 0 degrees to 90 degrees
North AND 0 degrees to 90 degrees South
, Longitude/Meridians equivalent of a Great Circle Right Ans - These
converge at the poles, so every meridian is half of a circle (half of a Great
Circle)_
Prime Meridian Right Ans - - 0 degrees to 180 degrees East AND 0 degrees
to 180 degrees West of the Prime Meridian
- Being the same size, one meridian over the other is arbitrary
- Official Prime Meridian = Observatory of Greenwich in Great Britan
International Date Line Right Ans - The 180-degrees meridian
Latitude/Longitude Pairs Right Ans - - North-South (Latitude) is typically
first (y-value)
- East-West (Longitude) is typically second (x-value)
Ex: 0 Degrees North (equator) 78 Degrees West (prime meridian)
How are lat/long values usually stored? Right Ans - -
Degrees/Minutes/Seconds (DMS; In this course)
- DD (Decimal Degrees)
How are DMS and DD different Right Ans - They are similar, but minutes
and seconds are expressed as decimal values
What are Decimal Degrees generally used to store? Right Ans - Digital
coordinate information (they make digital storage of coordinates easier and
computations faster)
How do you convert from DMS to DD Right Ans - Example: 53*32'04" N
(DMS)
1) Divide each value by the number of mins or secs in a degree
- 32 min = 0.533333 degrees (32/60)
- 04 sec = 0.001111 degrees (04/3600)
2) Add the degrees
- 53* + 0.533333* + 0.001111* = 53.534444DD
Questions With Easy-to-Understand Solutions
How do you measure in ArcGIS Pro? Right Ans - 1) Open the ribbon map
tab
2) Under "Inquiry", click "Measure"
How do you find map units on ArcGIS? Right Ans - In the Contents pane,
right-click the map (where the layers are stored), and choose properties
Who formalized the system of what we today call Latitude and Longitude?
Right Ans - Hipparchus
What is another name for Latitude and Longitude? Right Ans - Parallels and
Meridians (based on 360 degrees)
What is the Equivalent to 360 Degrees (in terms of Lat and Long)? Right
Ans - - Each degree is divided into 60 min
- Each min is divided into 60 sec
Lines of Latitude Right Ans - - Parallel
- Run East and West
- Measure the distances from north or south of the Equator
- THE SIDEWAYS LINES
Lines of Longitude Right Ans - - Run North and South
- Intersect at the poles
- Measure distances to the east and west of the Prime Meridian
- THE LINES GOING UP-AND-DOWN
The Graticule Right Ans - The network of intersecting lines of lat and long
Great Circle Right Ans - Lines of Latitude - A circle that divides the earth
into two equal halves - the EQUATOR
How are degrees of latitude measured? Right Ans - 0 degrees to 90 degrees
North AND 0 degrees to 90 degrees South
, Longitude/Meridians equivalent of a Great Circle Right Ans - These
converge at the poles, so every meridian is half of a circle (half of a Great
Circle)_
Prime Meridian Right Ans - - 0 degrees to 180 degrees East AND 0 degrees
to 180 degrees West of the Prime Meridian
- Being the same size, one meridian over the other is arbitrary
- Official Prime Meridian = Observatory of Greenwich in Great Britan
International Date Line Right Ans - The 180-degrees meridian
Latitude/Longitude Pairs Right Ans - - North-South (Latitude) is typically
first (y-value)
- East-West (Longitude) is typically second (x-value)
Ex: 0 Degrees North (equator) 78 Degrees West (prime meridian)
How are lat/long values usually stored? Right Ans - -
Degrees/Minutes/Seconds (DMS; In this course)
- DD (Decimal Degrees)
How are DMS and DD different Right Ans - They are similar, but minutes
and seconds are expressed as decimal values
What are Decimal Degrees generally used to store? Right Ans - Digital
coordinate information (they make digital storage of coordinates easier and
computations faster)
How do you convert from DMS to DD Right Ans - Example: 53*32'04" N
(DMS)
1) Divide each value by the number of mins or secs in a degree
- 32 min = 0.533333 degrees (32/60)
- 04 sec = 0.001111 degrees (04/3600)
2) Add the degrees
- 53* + 0.533333* + 0.001111* = 53.534444DD
