primitives are digitized in a stereomodel creating a planimetric map

Multiple choice questions are 6 points each, all others worth 20 points each. For multiple choice, read the question carefully and circle the letter of the most appropriate response

1) Which of the following orientation procedures requires ground control points?

 

a.                   Interior Orientation

b.                  Relative Orientation

c.                   Absolute Orientation

d.                  All of the above


2) Two overlapping vertical photographs were taken from a height of 1020 m above sea level with a 150.0 mm focal length camera.  The flight line coordinates of some point a were measured as follows:

 

x

y

x’

y’

point a

74.3 mm

-54.3 mm

-25.7 mm

-54.2 mm

 

If the airbase between photos was 600 m, what is the height of point a above sea level?

a.                   9.30 m 

b.                  900 m 

c.                   120 m

d.                  100 m 


3) The parallax difference between the top and base of Century Tower is 600 pixels on a stereopair of digital photos taken from 800 m above ground.  The average photo base is 9400 pixels.  Approximately how tall is the tower?

 

a.                   48 m

b.                  51 m

c.                   54 m

d.                  not enough information given

 

4) In general, georeferencing is the method by which 

a.                   effects of tilt are removed from aerial photographs

b.                  image pixels are related to ground/mapping coordinates

c.                   overlapping photos are combined to form a single photo

d.                  primitives are digitized in a stereomodel creating a planimetric map

5) In a semi-controlled mosaic, which of the following is true?

 

a.                   the photos arerectified

b.                  control points throughout the area are used

c.                   a and b

d.                  a or

6) In an oblique photo, as the auxiliary tilted photo coordinate 𝑦′ increases, photo scale

 

a.          decreases

b.          increases

c.                   stays the same

d.                  not enough information given

7) The US mapping entity NGA’s initialism stands for 

 

a.                   The National Geodetic Agency 

b.                  The National Geospatial-Intelligence Agency

c.                   The National Geographic-Support Administration

d.           The National Gravimetric Alliance 

8) Which of the following is compensated for in a rectified photo?

 

a.                   Relief displacement

b.                  Tilt of the camera

c.                   Terrain undulation

d.                  All of the above

To View Complete Question See Below  

  1. Question Attachments

    1 attachments —

Answer Detail

Get This Answer

Invite Tutor