Remote Sensing and GIS (GPLA3103)
BA. Geography and Planning - GP
Semester: First Semester
Level: 300
Year: 2017
Faculty: ARTS Department: GEOGRAPHY AND PLANNING Lecturer(s): FON GAH Philip
Course Code: GEOP 305 Course Title: REMOTE SENSING AND GIS
Date: Hall: CCAST Time: 3:00 – 6:00PM
Examination Instruction(s): SEE SECTIONS
Section A: Multiple Choice Questions
1. Water bodies have three types of reflectance on sensors. Which of the following is odd in the types of
reflectance of water bodies? A) Surface B) Bottom C) Velocity D) Volume of reflectance
2. Which of the following soil types will have a higher rate of reflectance on the visible part of the spectrum? A)
Dry Sandy B) Moist loam C) Dark humus D) moist laterite
3. The type of atmospheric scattering of the EMR where the wavelength of the incoming radiation is similar in
size to the atmospheric particles is A) Mie B) Selective C) Non selective D) Rayleigh
4. In the context of remote sensing which is the most important scattering that causes distortion to spectral
characteristics of reflected light A) Rayleigh B) Non selective C) Mie D) Selective
5. Which part of the spectrum is best used to study or make distractions between different vegetation types?
A) Micro Waves B) Visible region C) Infrared D) Ultraviolet region
6. Information in GIS is entered and stored as A) Panels B) Single panel C) Layers D) Dual panel
7. GIS deals with which kind of data? A) Numeric Data B) Spatial Data C) Binary Data D) Complex data
8. Which of the following statements is true about the capabilities of GIS A) Data management including
storage and maintenance B) Data presentation C) Data manipulation D) All of the above
9. Spatial data means data that has A) Complex values B) Positional Values C) Graphic values D) Decimal
Values
10. Successful spatial analysis needs A) Appropriate software B) Appropriate Hardware C) Computer user D)
All of the above
11. Geographic field is a geographic phenomena for which, for every point in the study area A) A value can be
determined B) A value is relevant C) A value cannot be determined D) All of the above
12. Visible light has wavelengths from 0.4µm (purple) to 0,7 µm (red). Which colour has the highest frequency?
A) Blue B) purple C) Green D) Red
13. Water reflect blue colour on remote sensors because A) Blue light has a smaller wavelength than red and
green light. B) The energy emitted from the sun is more concentrated in the blue wave length C) water
absorbs longer wavelengths more than the shorter wavelengths D) water absorbs shorter wavelengths
more than longer wavelengths
14. Which of the following effects do not result in geometric errors or distortions in a satellite image A) Earth
rotation B) Earth topography C) Sensor platform D) Earth curvature
15. Vegetation looks green in colour because? A) Vegetation absorbs light in the green range of the spectrum
B) Green light has higher wavelength than red and blue C) Vegetation reflects light for wavelengths in the
green range of the spectrum D) Chlorophyll has equal reflectance
REPUBLIC OF CAMEROON
Peace – Work - Fatherland
THE UNIVERSITY OF BAMENDA
P.O BOX 39, Bambili
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Section B: Structural Questions
1. Which part of the spectrum is best to determine variation in the quality of vegetation from airborne image?
2. Which wavelength is immune ti the effects of Haze?
3. Which colour will be reflected by water bodies when viewed at shorter wavelengths?
4. State two factors that may affect the spectral response of water on sensors
5. What is the main aim of carrying out image contrast enhancement?
6. State two methods by which the effects of haze can be reduce on an image
7. Within which wavelength of the spectrum is the effect of image Haze pronounced?
8. State 4 elements that can cause distortion of a remotely sensed data
9. State 4 uses of GIS data
10. Name the three components of wave motion
11. Name two types of mediums through which EMR can travel through
12. Which portion of the spectrum has the longest wavelength that is useful in remote sensing?
13. Name the three primary colours of the visible portion of the spectrum
14. The number of times a wave travels through a medium from a sensor to an object is referred to as?
15. Name 4 types interactions caused by EMR on the Earth surface
16. Name the three components of a wave motion
17. The diagram below shows the spectral reflectance curve of the five different types of surfaces of green
vegetation, turbid water, clear water, dry bare soil and wet moist soil (5marks)
i) Identify the types of surfaces associated with the letters A, B, C, D and E.
ii) State one reason why the curve A has a low reflectance value in the wavelength of between 0.4 – 0
iii) Which wave length is best used to distinguish turbid water from clear water on an image?
iv) In which part of the spectrum does green vegetation and water have similar values?
v) State one reason why the curve E is higher than curve D.
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