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Free download in PDF Elements of Remote Sensing Multiple Choice Questions with Answers for competitive exams. These short objective type questions with answers are very important for Board exams as well as competitive exams. These short solved questions or quizzes are provided by Gkseries.
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
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
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
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
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
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
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
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
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