WorksheetsGED203 - Quiz II
Total questions: 23
Worksheet time: 8mins
Which type of latitude is the angle between the equatorial plane and a radial line connecting the center of the ellipsoid to a point on the earth’s surface?
Geographic latitude
Geodetic latitude
Magnetic latitude
Geocentric latitude
What is the purpose of using best-fitting ellipsoid models?
They influence the atmospheric conditions on the Earth's surface
To accurately depict the Earth's shape for geodetic calculations
To study the variations in climate patterns across different regions
All of the above
Which type of latitude is the largest for the same point?
Geocentric latitude
Geodetic latitude
Reduced latitude
All are equal
What is a normal section in Geodesy?
A plane curve created by intersecting a plane containing the normal to the ellipsoid with the surface of the ellipsoid.
The shortest distance between two points on ellipsoid
A section tangent to the earth's surface
A section perpendicular to the meridian and parallel of latitude at the points
Geodesics provide the most accurate way to calculate the shortest distance between two points on the Earth's surface.
True
False
There are two principal radii of curvature at any point on the surface of the ellipsoid. Each of these is a function of the geodetic latitude.
True
False
The radius of curvature in the prime vertical is always greater than its counterpart in the meridian direction.
True
False
Anywhere except at equator
Anywhere except at pole.
At any equipotential surface, the gravity potential is ......
constant
variable
zero
Because of the uneven distribution of masses in the Earth, the plumbline is always straight.
True
False
The squared mean radius of curvature is given by (a)
Euler's radius of curvature is ...............
radius of curavture at any azimuth 𝛼
mean radius of curavture
radius of curavture in the prime vertical
All of the above
A distance of (N × cos𝜑× Δ𝜆) represents .................
A length of meridian arc on a spherical Earth
A length of meridian arc on ellipsoidal Earth
A length of parallel arc on a spherical Earth
A length of parallel arc on ellipsoidal Earth
The normal section gives a unique line between two points.
True
False
A geodesic is ...................................
.................. is the distance between any two points on the surface of a sphere.
.................. is the normal section between any two points on the surface of a sphere.
.................. is the plane curve between any two points on the surface of an ellipsoid.
.................. is the unique surface curve between any two points on the surface of an ellipsoid.
Any segment of a meridian or a parallel of latitude is a geodesic.
True
False
Geoid undulation is ...............................
difference between topography and ellipsoid
difference between topography and geoid
Distance between the geoid and best-fitting ellipsoid
Distance between the geoid and MSL
In this figure N = ......................
-Ve
Zero
+ve
None of the above
Direct Geodetic Problem: if the coordinates of a starting point, a distance and the forward azimuth to a second point are given and it is required to find the coordinates of the second point as well as the backward azimuth.
True
False
Angle between meridian north and the grid north is called ............
Spherical Excess
Convergence of meridians
Deflection
None of the above
Spherical excess belongs to ....................
Geometric effect
Gravimetric effect
Meridian convergance belongs to ....................
Gravimetric effect
Geometric effect
Becuase of meridian convergance, difference between forward and back azimuth of a line is
greater than 180
less than 180
exactly 180
None of the above
Because of the spherical excess, the sum of internal angles of a triangle is
equals 180
less than 180
greater than 180
None of the above
