Civil Engineering - Elements of Remote Sensing

Exercise :: Elements of Remote Sensing - Section 2

41. 

The object of photo-intepretation is:

A. identification
B. recognition of objects
C. judging the significance of objects
D. All of these

Answer: Option D

Explanation:

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42. 

Pick up the correct statement from the following :

A. The first man-made satellite, Sputnikl' was launched on 4th October, 1957
B. The United State's Explorer 6 transmitted the first picture of the earth in August 1959
C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960
D. U.S.A.'s highly secret mission CORONA started the collection of intelligence photograpy in 1960
E. All of these.

Answer: Option E

Explanation:

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43. 

Which one of the following statement is correct ?

A. Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
B. The rate of transfer of radiant energy is called flux and is expressed in watts.
C. The radiant energy which falls upon a surface, is termed as irradiance.
D. The radiant energy which falls away from the surface is termed as radient exitance and is measured in Wm-2
E. All of these

Answer: Option E

Explanation:

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44. 

DGPS is based on the concept that bais errors in the position of locations in a given local area, are same if their distances are within

A. 25 km
B. 50 km
C. 75 km
D. 100 km
E. 1250 km

Answer: Option D

Explanation:

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45. 

The reflectance from a surface is called specular reflection if it follows: .

A. Snells's law
B. Lambert's cosine law
C. Planktan's law
D. All of these

Answer: Option A

Explanation:

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