6-43.
What is the ratio of error of
closure?
1.
1/959
2.
1/1320
3.
1/4500
4.
1/10600
6-44.
What is the corrected latitude for
a traverse line of 485.35 ft with
a bearing of N 35°30’E?
1.
+394 .80
2.
+395.13
3.
+395.39
4.
+395.46
IN ANSWERING QUESTION 6-45, REFER TO
FIGURE 7–15.
6-45.
Compute the departure of a
traverse line 647.85 feet long,
bearing N 15°45’W.
1.
-613.56
2.
+613.56
3.
-175.89
4.
+175.89
6-46.
What is meant by the term
inversing?
1.
Computing the latitude and
departure of a traverse line
from its bearing and length
2.
Computing the bearing and
length of a traverse line from
its latitude and departure
3.
Computing the ratio of linear
error of closure of a traverse
from its length and error of
closure
4.
Computing the latitude and
departure from the corrected
angles and distances
6-47.
Plane coordinates describe the
location of a point in what manner?
1.
By a distance north or south
and east or west from a point
of origin
2.
By bearing north or south and
east or west from a point of
origin
3.
By bearing and distance from a
point of origin
4.
By the line of sight from a
point of origin
Learning Objective: Compute
coordinates from latitude and
departure; compute latitude and
departures from coordinates.
IN ANSWERING QUESTIONS 6-48 THROUGH 6-50,
ASSUME THAT A TRAVERSE LINE HAS THE
FOLLOWING PLANE COORDINATES
STATION A X = 627.42 Y = 326.87
STATION B X = 864.81 Y = 542.50
6-48.
What is the latitude of the
traverse line?
1.
-215.63 ft
2.
+215.63 ft
3.
-237.39 ft
4.
+237.39 ft
6-49.
What is the departure of the
traverse line?
1.
-215.63 ft
2.
+215.63 ft
3.
-237.39 ft
4.
+237.39 ft
6-50.
What is the bearing of the traverse
line?
1.
N47°45’E
2.
N42°15’E
3.
S47°45’W
4.
S42°15’W
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