1. Which of the following is an ellipsoid? a) Mercator b) Clark 1866 c) NAD 83 d

Question

1. Which of the following is an ellipsoid?

a) Mercator

b) Clark 1866

c) NAD 83

d) UTM e) Both b) and c]

2. A geographic coordinate system includes:

a) planar coordinates

b) projection

c) datum

d) all of the above

3. With reference to the Tissot Indicatrix, if a = b, but axb* 1, then the projection can be said to be:

a) equal area

b) conformai

c) equidistant

d) true direction

4. If you change the map projection of a data set, and then save that data in the new projection, and repeat this over and over, you are going to introduce errors into the data set because of:

a) changes in distortion

b) rounding errors

c) scale incompatibilities

d) coordinates not entered correctly

5. The query "population=500" is composed, from left to right, of:

a) value, operator,field

b) field,operator,value

c) operator,field,value

d) value,field,operator

Explanation / Answer

1. Clark 1866,

2. Datum,

3. Conformal,

4. Coordinate not entered correctly  

5. Field, operator, value

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