Download GTU BE/B.Tech 2019 Summer 4th Sem New 2141305 Ecology And Remote Sensing Question Paper

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Subject Code: 2141305

GUJARAT TECHNOLOGICAL UNIVERSITY

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SEMESTER-IV(NEW) — EXAMINATION — SUMMER 2019

Subject Name: Ecology and Remote Sensing

Time: 02:30 PM TO 05:00 PM

Instructions:

1. Attempt all questions.

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2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1

1. (a) Define: (i) Habitat (ii) Population (iii) Tolerance level [03]
2. (b) Give the difference between: Positive interaction and Negative interaction [04]

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3. (c) How Remote sensing, GIS and GPS is useful in Environmental Engineering field [07]

Q.2

1. (a) Explain the role of Indicator Organism with suitable examples. [03]
2. (b) What is the importance of scale in image interpretation? [04]
3. (c) Define: Communalism, Mutualism, Predication, Parasitism, Competition, Amensalism and antibiosis [07]

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OR

1. (a) Enlist Population estimation methods and explain any one in detail. [07]
2. (b) Explain territorial behavior and explain its role in population regulation. [03]
3. (c) What are the advantages and limitation of visual image interpretation and digital image processing? [04]

Q.3

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1. (a) State and Explain Shelford’s law and Liebigs law with appropriate example [07]
2. (b) Enlist the Indian remote sensing satellites. [03]
3. (c) Explain the types of film used in remote sensing. [04]

OR

1. (a) Explain the concept of stereoscopic 3D VIEWING. [07]

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2. (b) A camera with a 152 mm focal length takes an aerial photograph from a flying height of 2780m above sea level and the average elevation of the terrain above sea level is 500m. What is the scale of the photograph? [03]
3. (c) Define (i) GIS (ii) GPS (iii) Remote sensing (iv) image interpretation. [04]

Q.4

1. (a) Discuss in brief the elements of visual image interpretation. [07]
2. (b) What are the requirements of ground data in remote sensing? [03]

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3. (c) Write in brief about applications of GPS. [04]

OR

1. (a) Explain various interactions of incident EM energy with the atmosphere. [07]
2. (b) What are the limitations of GIS? [03]
3. (c) GIS as a science and technology. Justify. [04]

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Q.5

1. (a) Explain the applications of remote sensing in hydrological science. [07]
2. (b) What is ground truth data? List out its essential elements. [03]
3. (c) Explain the factors that affect spectral measurement? [04]

OR

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1. (a) Explain how remote sensing is useful in environmental impact assessment [07]

Date: 20/05/2019

Total Marks: 70

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