LECTURE 6

Question 1

Extensively employed to
establish horizontal control

Answer 1

Triangulation

Question 2

Series of joined or overlapping triangles; Balance of sides are calculated from angles at vertices

Answer 2

Triangulation system

Question 3

Line in a system whose length is precisely known

Answer 3

Base line

Question 4

Known length and located at regular intervals or at the end of the system

Answer 4

check base

Question 5

Consist of joined or overlapping triangles; Lengths of sides are measured

Answer 5

Trilateration system

Question 6

Survey made to establish Geodetic Latitudes and Longitudes

Answer 6

Horizontal control surveys

Question 7

First step in triangulation

Answer 7

reconnaissance

Question 8

Not the most accurate triangulation figure due to its lack of checks

Answer 8

chain of triangles

Question 9

Used in long and narrow surveys of low precision

Answer 9

chain of triangles

Question 10

Group of triangles bounded by 3 or more
sides at a common vertex (station)

Answer 10

chain of polygons

Question 11

Used in wide area of high precision

Answer 11

chain of polygons

Question 12

For long and narrow surveys of high precision

Answer 12

chain of quadrilateral

Question 13

Allows point position computation by four independent routes for checking

Answer 13

chain of quadrilateral

Question 14

Required to evaluate to ensure uniform
accuracy throughout

Answer 14

strength of figure

Question 15

What does smaller r in strength of figure implies?

Answer 15

stronger figure