Elements of Remote Sensing MCQs | Elements of Remote Sensing Multiple Choice Questions with Answers

Questions
61 The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
A Reduces the contrast but increases the sharpness
B Reduces the contrast of the image and also its sharpness
C Increases the contrast of the image but reduces the sharpness
D Increases both the contrast and sharpness

Answer: Reduces the contrast of the image and also its sharpness
62 Pick up the correct statement from the following
A Water equivalent height of snow is the height of water column obtained by melting snow
B The ratio of the up flux and down flux just above the snow surface, is called albedo
C Spectral albedo of snow is calculated for the semi-infinite snow thickness
D All of these

Answer: All of these
63 Pick up the correct statement from the following:
A Permeability is expressed as the ratio of the magnetic flux density B. to the field strength of the magnetizing field
B Permeability is a measure of conducting the magnetic lines of force in the material
C Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium
D All of these

Answer: All of these
64 Pick up the correct statement from the following:
A The three elements of topology are adjacency, containment, and connectivity
B Topology describes the geometric characteristic of objects which do not change under transformations and are independent of any coordinate system
C Topological characteristics of an object are independent of scale measurement
D All of these

Answer: Both A. and B.
65 Pick up the correct statement from the following:
A Spatial resolution of the imaging system becomes poorer with increase of platform height
B In remote sensing technique, the observation place, is called a platform
C Platforms may be either stationary or mobile
D All of these

Answer: All of these
66 Pick up the correct statement from the following:
A Indian Space Research Organisation (ISRO) is responsible for the space technology and its application to various activities
B Indian space effort started in 1962 with the establishment of a rocket
C Development of space (DOS) was established by the Government of India in 1972
D All of these

Answer: All of these
67 Pick up the correct statement from the following:
A At the polarising angle, the reflected and refracted rays are orthogonal
B The minimum frequency of light for which no electrons are emitted, is called threshold frequency
C Polarising angle of glass is 57.5°
D All the above

Answer: All the above
68 Which one of the following statements is correct regarding the GPS satellites?
A The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
B The nominal altitude is about 20,200 km
C The inclination of axis satellite is 55°
D All of these

Answer: All of these
69 Which one of the following statement is correct?
A The radiant energy which falls upon a surface is termed as irradiance
B Radiant energy expressed in Joules, is the energy associated with electromagnetic radiation
C The rate of transfer of radiant energy is called flux and is expressed in watts
D All of these

Answer: All of these
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