Civil Engineering - Elements of Remote Sensing

Exercise :: Elements of Remote Sensing - Section 1

21. 

The basic requirement of any sensor system, is :

A. radiometric resolution
B. spatial resolution
C. spectral resolution
D. temporal resolution
E. All of these

Answer: Option E

Explanation:

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22. 

Which one of the following helps to identify the objects on the earth surface ?

A. atmospheric window
B. signature
C. radiometric error
D. None of these

Answer: Option B

Explanation:

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23. 

The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

A. ozone hole
B. atmospheric window
C. ozone window
D. black hole

Answer: Option B

Explanation:

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24. 

Which one of the following statements is correct?

A. During the day, earth reflects solar radiation
B. During the day earth reflects both solar radiation the emission from its surface
C. During the night, earth emits radiation from its surface
D. All of these

Answer: Option D

Explanation:

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25. 

The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths :

A. 0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 μm
B. 2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 μm
C. 4.2 to 5.0, 7.0 to 15.0 μm and 1 cm to 30 cm
D. All of these

Answer: Option D

Explanation:

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