Civil Engineering - Elements of Remote Sensing

Exercise :: Elements of Remote Sensing - Section 2

26. 

The code based GPS receivers are generally used for:

A. Vehicle tracking
B. Land navigation
C. Trans movement
D. All of these

Answer: Option D

Explanation:

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27. 

Critical angle of electromagnetic radiation takes place if

A. angle of incidence is equal to angle of refraction
B. angle of incidence is greater than the angle of refraction
C. angle of incidence is equal to 90°
D. angle of refraction is equal to 90°

Answer: Option D

Explanation:

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28. 

The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :

A. 8
B. 12
C. 16
D. 24

Answer: Option D

Explanation:

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29. 

Pick up the correct statement from the following:

A. For the same feature, the photograph taken from the satellite vertically above the aircraft, the height displacement is lesser than the the aerial photograph.
B. The scale of the aerial photograph depends upon the scale of the topography
C. The feature at the principal point has no height displacement.
D. The scale of the topography of regions of higher elevation with the same flying height, is larger than that of the area of lower elevation.
E. All of the above

Answer: Option E

Explanation:

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30. 

Which one of the following geometric errors of satellite sensors is random ?

A. scan skew
B. panoramic distortion
C. earth rotation
D. altitude variation

Answer: Option D

Explanation:

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