Seat No.: Enrolment
GUJARAT TECHNOLOGICAL UNIVERSITY
B.PLAN- SEMESTER- V EXAMINATION WINTER 2018
Subject Code:1055505 Date:04/12/2018
Subject Name:Geo-Informatics for Planning
Time:10:30 AM TO 12:30 PM Total Marks: 50
Instructions:
1. Attempt all questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks
Q1 Match the following extension of files (10 marks)
A
.shp
1
Projection file
B
.DXF
2
Shape file
C
.tif
3
Stores the index of the feature geometry
D
.prj
4
CAD File
E
.dbf
5
Raster Data
F
.gdb
6
Metadata for ArcGIS
G
.mxd
7
Geo-database
H
.xml
8
Map document
I
.shx
9
comma-separated values
J
.csv
10
Stores attribute information
Q2 Fill in the blanks (10 marks)
a. occurs when particles or large gas molecules present in the atmosphere interact with and cause the electromagnetic radiation to be redirected from its original path
b. The detail discernible in an image is dependent on the of the sensor and refers to the size of the smallest possible feature that can be detected.
c. are the smallest units of an image
d. Images where only large features are visible are said to have
e. In a images, small objects can be detected.
f. is the science and art of obtaining information about an object, area or phenomenon through the analysis of data acquired by a device that is not in contact with the object, area or phenomenon under investigation.
g. A integrates hardware, software, and data to capture, store, analyze, manage, and display various forms of geographically referenced information.
h. is a combination of information, experience and insight that may benefit the individual or the organisation.
i. is unprocessed facts and figures without any added interpretation or analysis.
j. Map is a mathematical process of representing the earth's curved surface on a flat map.
Q3 Define the following Geoprocessing tools (5x2=10 marks)
a. Union
b. Intersection
c. Symmetric Difference
d. Erase
e. Update
f. Dissolve
g. buffer
Q4 Explain any two in detail (any (2x5=10 marks)
Components of a GIS
Attribute query and spatial query with example
Raster and Vector Data
Q5 Explain the components of Aerial Photo-Interpretation in detail (10 marks)