GIS and remote sensing research questions

Geo-information systems and remote sensing

University of Eldoret
Bachelor of Education
University Examination


Answer all questions in section A and any two in section B
section A
1.a)Define GIS and state its basic components.(4marks)
b)What are the processes involved in using GIS.(3marks)
c)To make adequate decisions,users of a GIS system should have access to various kinds of information acquired by several disciplines.List thd disciplines.(2marks)
d)GIS databases are normally conceptualized as series of layers containing geographic information.These data layers can be broadly grouped.List the groups and give examples of each.(3marks)
2.a)Spatial objects are geographic features that can be described on a map.These objects referred to as features are usually classified in a GIS into THREE data types.List the data types.(3marks)
b)Explain briefly the Three examples of spatial relationship.(6marks)
c)Define the following:
i)Attributes
ii)Layers (2marks)


3.Case study application:Environmental Community Service Project.
This case study describes an ongoing environmental community service project in Eldoret involving the ENVIRONMENTAL SCIENCE and planning student at large.In the partnership project ,a non-profit land trust,a community college,public schools,and municipal agencies collaborated in water quality monitoring and Geographic Information System (GIS) training and sampling.Textual documentation from the project,interviews of student volunteers,trainers ,and collaborators,and photographic and computer-generated products were used as data sources.The study focused upon community relations and the combination of environmental and technological applications across a year-long project.


A)What types of technology can you use in your participation to locate the exact points where sampling is conducted?(2marks)
b)How can the GPS benefit the project.(3marks)
c)How can you use the GIS towards implementing the project.(4marks)
d)Do you expect that you will work with GIS in some future capacity?(1mark)
section B
3.a)There are different ways to organize data inside a GIS.Name the itwo ways most currently used by different GISs.(2marks)
b)Explain the TWO ways (above) with the aid of a sketch and examples.(8marks)
c)Enumerate the advantages and disadvantages of raster and vector data models.(10marks)
4.a)List the steps to follow while implementing a GIS systems.(5marks)
b)State the main benefits of today”s GIS?(4marks)
c)What are the main problems of today”s GIS?(4marks)
d)What are the main trends and developments of a GIS?(7marks)


5.a)What is a GPS?(2marks)
b)Briefly explain the principle of GPS operation.(4marks)
c)State the Three major components of GPS.(3marks)
d)Explain briefly any FOUS factors that affect GPS.(8marks)
e)What are factors that determine Position Dilution of Precision (PDOP)(3marks)


RONGO UNIVERSITY
BACHELOR OF EDUCATION
UNIVERSITY EXAMINATION


GEO111: Introduction to Geo-information systems and remote sensing
QUESTION ONE
a)What do you understand by the term Geographic Information System (GIS) and why it is described as an integrated technology (4mks)

b)Explain the main difference between Passive and Active Remote sensing (2mks)

c)What is the relationship between remote sensing and GIS(4mks)

d)Explain 3 major platforms that are normally used in remote sensing (3mks)

e)What is an electromagnetic spectrum and how it is important to remote sensing (3mks)

f)Name and explain three data types that are normally used in GIS(3mks)

g)Clearly explain how you would go about setting a GIS lab in your institution (6mks)

QUESTION TWO

a)Explain three main characteristics of an electromagnetic spectrum (3mks)

b)Assuming the speed of light to be 3×108 m/s.If the frequency of electromagnetic radiation is 600,000GHz (GHz=109m/s).What is the wavelength of the radiation in micrometre(3mks)

c)Describe the main components which make up a GIS, clearly explaining the importance of each component(5mks)

d)Explain FOUR sources of data for GIS(2mks)

e)Define the term Spectral Reflectance and explain its importance in remote sensing (2mks)

QUESTION THREE(15mks)
a)At the moment there are a number of GIS softwares in the market, some commercial and others Open source. Name THREE commercial and THREE Open Source GIS software, clearly explaining areas where they are used (6mks)

b)Explain FOUR advantages and FOUR disadvantages of using remote sensing (4mks)

c)Summarize some SIX main impediments of a GIS (3mks)

d)Most remote sensing systems avoid detecting and recording waves in the ultraviolet and blue portion of the electromagnetic spectrum.Explain why this would be the case(2mks)

QUESTION FOUR(15mks)
a)Before radiation used for remote sensing reaches the earth surface, it has to travel a very long distance through the atmosphere. During this journey bthe radiation may be scattered or absorbed.Explain THREE major types of scattering and THREE types of absorption clearly stating the circumstances that lead to their occurrences (6mks)

b)Explain FOUR main advantages of using GIS technology(4mks)

c)GIS is now used extensively in a number of areas.Name FOUR such areas of application in the following sectors (4mks)
1.Natural Resources Management
2.Facility Management
3.Land Management
4.Street-networks

d)Explain the meaning of the term Atmospheric windows giving TWO examples (1mk)

QUESTION FIVE(15mks)
a)Clearly explain how you would apply remote sensing in the following areas(6mks)

1.Agricultural production
2.Forest management
3.Hydrology

b)Radiations reflected from the earth surface may be detected and recorded photographically or electronically. Explain the main difference between the two systems giving THREE advantages of each system(3mks)

c)Describe the main Historical developments in the field of remote sensing since the earliest time(6mks)


MOI UNIVERSITY REGULAR EXAMINATION FOR 2016/2017

ACADEMIC YEAR
FIRST YEAR FIRST SEMESTER EXAMINATION FOR THE DEGREE OF
BACHELOR OF ARTS, BACHELOR OF ARTS WITH EDUCATION AND
BACHELOR OF EDUCATION (ARTS)

COURSE CODE :GEO 111.
COURSE TITLE :INTRODUCTION TO REMOTE SENSING AND GIS
INTRODUCTIONS TO CANDIDATES.
Answer QUESTION ONE and ANY OTHER TWO Questions;use labelled diagrams and examples in
illustrating your answers where necessary.


Q1.
Describe any ten weakness and any ten strengths of satelite remote sensing over other means of
gathering geographic data and suggest measures to avert the weakness. (30 marks)
Q2.
Considering a wavelength range of 0.4-3.0micrometers, examine the energy interaction with vegetation,
soil and water. ( 20 marks )
Q3.
Discuss the the possible ways of a feature in a GIS database.(20 marks)
Q4.
Discuss the GIS data capture equipment and techniques.(20 marks)
Q5.
Identify and describe the structure and spectral sensitivity of films used in remote sensing. (20 marks)
Q6.
Explain the various GIS analysis functions that can be used to analyze geographic data.( 20 marks)

MASENO UNIVERSITY
UNIVERSITY EXAMINATIONS

2015/2016
THIRD YEAR FIRST SEMESTER EXAMINATION FOR THE DEGREE OF BACHELOR OF SCIENCE IN GEOSPATIAL INFORMATION SCIENCE WITH INFORMATION TECHNOLOGY
CITY CAMPUS – REGULAR
PGS 321: PARTICIPATORY GIS AND MOBILE GIS
Date: 30 November, 2015
Time: 2.00 – 4.00 pm
INSTRUCTIONS:
Answer question ONE and any other TWO questions.
PGS 321: PARTICIPATORY GIS AND MOBILE GIS
INSTRUCTIONS: Answer question ONE, and any other TWO

  1. a) Explain the concept of PGIS.(5 marks)
    b) Explain the enabling and disabling environments in a PGIS? (5 marks)
    e) Explain the advantages of using PGIS over conventional GIS? (10 marks)
    d) Discuss the various techniques used in PGIS.(10 marks)
  2. Discuss the various data collection methods used in PGIS practice. (20 marks)
  3. Compare and contrast topographical maps and remote sensing data as a source of base map (20 marks)
  4. Discuss the process of generating and customizing a base map (20 marks)
  5. Using an aerial photo as base map, discuss the various interpretation cues useful for identifying features. (20 marks)
  6. Selecting a data collection method in PGIS is very critical. What are the key factors to consider while selecting the most appropriate method to use?(20 marks)

MASENO UNIVERSITY
UNIVERSITY EXAMINATIONS 2015/2016
SECOND YEAR SECOND SEMESTER EXAMINATIONS FOR THE DEGREE OF BACHELOR SCIENCE IN EARTH SCIENCE WITH INFORMATION TECHNOLOGY
MAIN CAMPUS


NGA 209: GIS AND MODELING
Date: 27h April, 2016
Time: 11.00 – 1.00 pm
INSTRUCTIONS:
• Answer question ONE and any other TWO questions.
• Sketch maps and diagrams should be used whenever appropriate.
NGA 209: GIS and Modeling

  1. a. “GIS can be used as a decision support tool”. Discuss.(6 marks)
    b. Examine common errors that occur during data input in GIS(6 marks)
    c. Examine the responsibilities of a Database Administrator in GIS.(10 marks)
    d. Without a topologic data structure in a vector based GIS, most data manipulation and analysis functions would not be practical. Discuss.(8 marks)
  2. Examine the main factors that contribute to the failure of a GIS implementation strategy.(20 Marks)
  3. a. Discuss the main phases of a GIS implementation plan. (12 marks)
    b. Examine the advantages of using vector data model over to store spatial data. (8 marks)
  4. a. Examine salient features to be considered for use when selecting a GIS software package. (8 marks)
    b. Examine six steps necessary in data editing and verification process for spatial data in GIS raster data model (12marks)
  5. a. Explain the importance of user needs analysis in organizing data for a GIS project.(12 marks)
    b. Examine the following concepts
    i. Spatial indexing
    ii. Vertical layering(4 marks)
  6. Spatial analysis functions are the power of GIS. Discuss.(20 marks)

GIS Applications research questions

61831-alp-2409-gis-applications