Civil Engineering - Elements of Remote Sensing

Exercise :: Elements of Remote Sensing - Section 2

1. 

Which one of the following statements is correct?

A. The function of an information system is to improve ones ability to make decisions
B. The information system is the chain of operations
C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
D. All the above

Answer: Option D

Explanation:

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2. 

The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:

A. passive remote sensing
B. active remote sensing
C. neutral remote sensing
D. None of these

Answer: Option B

Explanation:

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3. 

The normal altitude of GPS satellite is about

A. 16, 200 km
B. 20, 200 km
C. 24, 400 km
D. 36, 100 km

Answer: Option B

Explanation:

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4. 

Repetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :

A. Cloud evolution
B. Vegetative cover
C. Snow cover
D. Forest fires
E. All of these

Answer: Option E

Explanation:

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5. 

Orbital radius of GPS satellites is approximately:

A. 15,200 km
B. 26,600 km
C. 18,400 km
D. 36,000 km

Answer: Option B

Explanation:

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