CONS 127 Final Exam Questions and Answers Solved 100%
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Module
CONS 127
Institution
CONS 127
CONS 127 Final Exam Questions and Answers Solved 100%
Latitude - Answers Angle describing East/West position
Longitude - Answers Angle describing North/South position
Parallel - Answers Circle connecting locations within a given latitude
Three ways we can describe Earth's shape - Answers Sphere...
CONS 127 Final Exam Questions and Answers Solved 100%
Latitude - Answers Angle describing East/West position
Longitude - Answers Angle describing North/South position
Parallel - Answers Circle connecting locations within a given latitude
Three ways we can describe Earth's shape - Answers Sphere/ellipsoid/geoid
Only correct representation of Earth's surface - Answers geoid
Main difference between equivalent and conformal projection - Answers Equivalent- Areas of countries
and continents are preserved. Conformal projection- angles between positions are preserved.
How was a metre first defined? - Answers One ten millionth of distance from the Equator to the North
Pole
How is it defined now? - Answers Based on the speed of light and defined by the length of the path
travelled by light in a vacuum during a time interval of 1/299 792 485 of a second
What is the name of the unit which is equal to 1000 nm? - Answers 1 micrometer
Which covers more area, a small or a large scale map? - Answers Small scale map
What are two ways scale can be indicated on a map? - Answers graphic scale and fractional scale
What kind of map scale would be appropriate for representing large countries and/or continents? For a
city neighbourhood? - Answers Graphic scale used for small scale maps. Verbal scale for
city/neighbourhood.
What are two ways scale can be indicated on a map? - Answers Graphic scales or fractional scales
Who wrote the soundtrack to The Powers of Ten? - Answers Elmer Bernstein
What is relative positioning? Vs absolute positioning? - Answers Relative- relates to landmarks and other
features around you. Absolute- uses coordinates, fixed position
Prior to 1800, what was the underlying principal behind positioning? - Answers Dead reckoning (use
previously determined position and advancing the position based on estimated speed over time)
What are the two aspects of a position that need to be measured? - Answers ??
Name some 3 devices which can measure distances at different scales? - Answers Electron microscope,
optical microscope, cameras
What is a geodetic marker? - Answers Basis for mapping of Earth's surface
, In Ocean navigation which is easier to calculate, latitude or longitude? - Answers Latitude is easier to
calculate
Describe how the altitude-intercept model can be used to find a position on the Earth's surface. How
does this method differ from previous positioning methods? - Answers Requires the observer knows the
time at Greenwich at the moment of observation. If you know what time it is when you're at sea and at
Greenwich, having the difference you can calculate the longitude. Dead reckoning// a method of
establishing a fix by measuring the altitude of a celestial body from the true position and comparing this
with the calculated
What is the critical measurement to obtain an accurate longitude? - Answers Time
What are the ways that we can define space? - Answers No district boundary between Earth and space.
Could look at it as middle atmosphere or after upper atmosphere
What is an orbit? - Answers Curved path around celestial object
Which type of orbit would be used to monitor weather? - Answers Geostationary orbit
Which type of orbit is used for GPS tracking? - Answers Far-elliptical orbit used for GPS
Which orbit is best for getting to and returning from space easily? - Answers Low earth orbit
About how long does it take for astronauts to get to the ISS? - Answers 3 days
Which orbit type are most remote sensing satellites in? Why? - Answers Most are in low-earth orbit
because it is temporary and closest to the earth
Name three types of satellites (i.e. performing different functions) that use geostationary orbits? -
Answers Weather forecasting, satellite radio, satellite tv
Which author conceived of geostationary orbits before their applications were fully considered? -
Answers Arthur C. Clarke
What does GNSS stand for? How does it differ from GPS? - Answers Global Navigation Satellite System.
Describes satellites: GPS, Glonass, Galileo
What is the minimum number of satellite needed for an accurate positional location? - Answers Three,
but four satellites for a more accurate position
What two key types of information are sent by GNSS satellites to receivers that allow for the
determining of position? - Answers Time and pseudorange?
Explain the causes of two different types of dilution of position error and how those errors can be
minimized. - Answers If satellites are too close together, accuracy will be lower and if there aren't
enough satellites, accuracy is also lower
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