Semester
Subject
Year
Tribhuwan University
Institute of Science and Technology
2080
Bachelor Level / Third Year / Sixth Semester / Science
Bachelors in Information Technology (BIT355)
(Geographical Information System)
Full Marks: 60
Pass Marks: 24
Time: 3 Hours
Candidates are required to give their answers in their own words as for as practicable.
The figures in the margin indicate full marks.
Section A
Long Answers Questions
Attempt any TWO questions.
[2*10=20]
1.
What is Spatial Data Model? Explain vector data model and raster data model with application area.[10]
2.
What is Remote sensing? Explain the components of remote sensing[10]
3.
What is GIS? Explain the various components of GIS in brief.[10]
Section B
Short Answers Questions
Attempt any Eight questions.
[8*5=40]
4.
What is Topology? Explain the importance of topology in GIS. [5]
5.
Define a buffer zone. Describe and explain three variations in buffering. [5]
6.
Refer to the following figure, draw a quadtree, and code the spatial index of the shaded (spatial) feature.
[5]
7.
What do you understand by Focal Raster Operations? Explain with example. [5]
8.
What is overlay? Explain Union operations. [5]
9.
What is Model Builder? Explain with example and its use in GIS application. [5]
10.
Explain the Open Vs Commercial GIS Program with example. [5]
11.
What are the main advantages of using shape files? [5]
12.
Write short notes on: Spatial interpolation Write short notes on: Map Scale vs Scale factor [2.5+2.5]