1. INTERPOLATING CONTOURS GRAPHICALLY. The accompanyingtabulation gives elevations of points over the area of a 30m by 40m citylot. The elevations were obtained by the Checkerboard Method using 10-msquares. Point A-1 is located at the northwest corner of the lot and pointF-4 at the southeast corner. All elevations are in meters.POINT1234A878.8882.5883.5883.6B88 3.2 885.9893.7887.2C888.6 891.8889.3882.8882.5 890.4 892.6889.6E883.2 888.5 892.8 893.5Requirements:a) Plot the contours using a horizontal scale of 6cm=10m andcontour interval of 1 meter.b) Arrange the plotting paper so that the longer side is vertical (useB" by 11" bond paper).c) All corner designations and corresponding elevations must beindicated, including all vertical and horizontal lines.d) Show the direction of north and indicate the scale used.e) Indicate the elevations of the following index contours: 880, 885,890, and 895m. The thickness of the index contours must be drawn abouttwice the thickness of intermediate contours.f) Use a pencil for the initial plot and ink the final plot using atechnical pen.

Given, Horizontal scale 6 cm =10 m Index contour=880,885,890 and 895

1. INTERPOLATING CONTOURS GRAPHICALLY. The accompanying tabulation gives elevations of points over the area of a 30m by 40m city lot. The elevations were obtained by the Checkerboard Method using 10-m squares. Point A-1 is located at the northwest corner of the lot and point E-4 at the southeast corner. All elevations are in meters. POINT 1 2 3 4 A 878.8 882.5 883.5 883.6 B 88 3.2 885.9 893.7 887.2 с 882.8 888.6 891.8 889.3 D 882.5 890.4 892.6 889.5 883.2 888.5 892.8 893.5 E

1. INTERPOLATING CONTOURS GRAPHICALLY. The accompanying tabulation gives elevations of points over the area of a 30m by 40m city lot. The elevations were obtained by the Checkerboard Method using 10-m squares. Point A-1 is located at the northwest corner of the lot and point E-4 at the southeast corner. All elevations are in meters. POINT 1 2 3 4 A 878.8 882.5 883.5 883.6 B 88 3.2 885.9 893.7 887.2 с 882.8 888.6 891.8 889.3 D 882.5 890.4 892.6 889.5 883.2 888.5 892.8 893.5 E

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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Concept explainers

Area Computations

The area is the mathematical estimation of the inner space occupied by any shape or object and area computation is the evaluation of how much inner space that particular shape or object has utilized. Simple applications include calculating the area of wall for the quantity of paint or plaster to be applied on it, area calculations for construction of a trapezoidal dam and how much material is required, calculating the area of a circle to determine the range or distance of wheels that they are capable of covering due to varied radii and so on.

Question

1. INTERPOLATING CONTOURS GRAPHICALLY. The accompanying
tabulation gives elevations of points over the area of a 30m by 40m city
lot. The elevations were obtained by the Checkerboard Method using 10-m
squares. Point A-1 is located at the northwest corner of the lot and point
F-4 at the southeast corner. All elevations are in meters.
POINT
1
2
3
4
A
878.8
882.5
883.5
883.6
B
88 3.2 885.9
893.7
887.2
C
888.6 891.8
889.3
882.8
882.5 890.4 892.6
889.6
E
883.2 888.5 892.8 893.5
Requirements:
a) Plot the contours using a horizontal scale of 6cm=10m and
contour interval of 1 meter.
b) Arrange the plotting paper so that the longer side is vertical (use
B" by 11" bond paper).
c) All corner designations and corresponding elevations must be
indicated, including all vertical and horizontal lines.
d) Show the direction of north and indicate the scale used.
e) Indicate the elevations of the following index contours: 880, 885,
890, and 895m. The thickness of the index contours must be drawn about
twice the thickness of intermediate contours.
f) Use a pencil for the initial plot and ink the final plot using a
technical pen.

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