CONS 127-Final Exam UPDATED
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is latitude and Longitude - CORRECT ANSWER Latitude is the line moving in the
North-South direction, Longitude is the line that goes around the Earth horizontally
Where is the Prime Meridian - CORRECT ANSWER Greenwich, England at 0 degrees
longitude
What is a parallel - CORRECT ANSWER A parallel is a circle connecting all locations with a
given latitude
What are the three ways the earths shape can be mathematically defined - CORRECT
ANSWER Geoid, Ellipsoid, Sphere
Geoid - CORRECT ANSWER Shape of the surface of the calmed oceans (best representation of
earth)
Ellipsoid - CORRECT ANSWER Where our A axis is longer than our B axis. (semi major and
semi minor axis)
What is the main difference between an equivalent and conformal projection - CORRECT
ANSWER In a conformal map projection the angles are preserved, equivalent projection
preserve the size of a country/landmass
Considering the case of Africa and Greenland, describe how map projection might influence the
perspective of the map viewer - CORRECT ANSWER when a country/continent is projected to
look smaller than it actually is, people may think it is of lesser importance
How was a meter first defined? - CORRECT ANSWER A meter was a part of a distance
between the north pole and the equator
, How is a meter defined now? - CORRECT ANSWER A fraction of how many seconds light
takes to travel across a meter
What is the name of the unit which is equal to 1000nm - CORRECT ANSWER nanometer
Which covers more area, a small or a large scale map? - CORRECT ANSWER A small scale
map
What are two ways scale can be indicated on a map? - CORRECT ANSWER Graphic, scale,
verbal scale
What kind of map scale would be appropriate for representing large countries and or continents? For a
city neighbourhood? - CORRECT ANSWER A verbal scale would be used for neighbourhoods
(large scale), Maps of countries are in small scale
Name three devices which can measure distance at different scales - CORRECT
ANSWER GPS, theodolite, geodetic marker
What is the difference between relative and absolute position? - CORRECT ANSWER Relative
position is based off of where you are in relation to something, absolute position is your absolute
coordinate location
What is a geodetic marker? - CORRECT ANSWER Points of absolute coordinate to mark key
survey points on the earths surface
In ocean navigation, which is easier to calculate? latitude or longitude - CORRECT
ANSWER Latitude
What is the critical measurement to obtain an accurate longitude - CORRECT ANSWER time
on the ship/place you are and time/place of a starting point
What is an orbit? - CORRECT ANSWER A path taken by an object created by gravity, it keeps
going around but never falls all the way
ACTUAL QUESTIONS AND CORRECT
ANSWERS
What is latitude and Longitude - CORRECT ANSWER Latitude is the line moving in the
North-South direction, Longitude is the line that goes around the Earth horizontally
Where is the Prime Meridian - CORRECT ANSWER Greenwich, England at 0 degrees
longitude
What is a parallel - CORRECT ANSWER A parallel is a circle connecting all locations with a
given latitude
What are the three ways the earths shape can be mathematically defined - CORRECT
ANSWER Geoid, Ellipsoid, Sphere
Geoid - CORRECT ANSWER Shape of the surface of the calmed oceans (best representation of
earth)
Ellipsoid - CORRECT ANSWER Where our A axis is longer than our B axis. (semi major and
semi minor axis)
What is the main difference between an equivalent and conformal projection - CORRECT
ANSWER In a conformal map projection the angles are preserved, equivalent projection
preserve the size of a country/landmass
Considering the case of Africa and Greenland, describe how map projection might influence the
perspective of the map viewer - CORRECT ANSWER when a country/continent is projected to
look smaller than it actually is, people may think it is of lesser importance
How was a meter first defined? - CORRECT ANSWER A meter was a part of a distance
between the north pole and the equator
, How is a meter defined now? - CORRECT ANSWER A fraction of how many seconds light
takes to travel across a meter
What is the name of the unit which is equal to 1000nm - CORRECT ANSWER nanometer
Which covers more area, a small or a large scale map? - CORRECT ANSWER A small scale
map
What are two ways scale can be indicated on a map? - CORRECT ANSWER Graphic, scale,
verbal scale
What kind of map scale would be appropriate for representing large countries and or continents? For a
city neighbourhood? - CORRECT ANSWER A verbal scale would be used for neighbourhoods
(large scale), Maps of countries are in small scale
Name three devices which can measure distance at different scales - CORRECT
ANSWER GPS, theodolite, geodetic marker
What is the difference between relative and absolute position? - CORRECT ANSWER Relative
position is based off of where you are in relation to something, absolute position is your absolute
coordinate location
What is a geodetic marker? - CORRECT ANSWER Points of absolute coordinate to mark key
survey points on the earths surface
In ocean navigation, which is easier to calculate? latitude or longitude - CORRECT
ANSWER Latitude
What is the critical measurement to obtain an accurate longitude - CORRECT ANSWER time
on the ship/place you are and time/place of a starting point
What is an orbit? - CORRECT ANSWER A path taken by an object created by gravity, it keeps
going around but never falls all the way
