The Following Section consists of Multiple Choice Questions on Elements of Remote Sensing.
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Elements of Remote Sensing MCQ 1/span>
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Question 1 of 20
1. Question
1 pointsWhich one of the following statements is correct ?
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Question 2 of 20
2. Question
1 pointsThe refractive index of the ocean water:
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Question 3 of 20
3. Question
1 pointsThe arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called :
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Question 4 of 20
4. Question
1 pointsElectromagnetic radiation :
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Question 5 of 20
5. Question
1 pointsPick up the important characteristic of a target which facilitates its identification from the following:
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Question 6 of 20
6. Question
1 pointsWhich one of the following frequency regions is a part of sun’s radiation?
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Question 7 of 20
7. Question
1 pointsThe instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface, are called :
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Question 8 of 20
8. Question
1 pointsDue to pertubation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its
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Question 9 of 20
9. Question
1 pointsCoherence of two electromagnetic waves takes place if their phase difference is
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Question 10 of 20
10. Question
1 pointsThe part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
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Question 11 of 20
11. Question
1 pointsWhich one of the following residual biases involves the GPS accuracy ?
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Question 12 of 20
12. Question
1 pointsPick up the correct definition from the following with response to GIS.
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Question 13 of 20
13. Question
1 pointsWhich one of the following errors is produced by platform characteristics of the sensor ?
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Question 14 of 20
14. Question
1 pointsThe coherence length over which there is a strong relationship between amplitudes is;
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Question 15 of 20
15. Question
1 pointsIn the given figure the phase of
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Question 16 of 20
16. Question
1 pointsIf 0 is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to :
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Question 17 of 20
17. Question
1 pointsWhich one of the following statements is correct regarding the GPS satellites ?
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Question 18 of 20
18. Question
1 pointsPick up the correct statement from the following:
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Question 19 of 20
19. Question
1 pointsRayleigh’s criteria for a rough surface is: (where letters carry their usual meanings).
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Question 20 of 20
20. Question
1 pointsPick up the correct statement from the following :
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Elements of Remote Sensing MCQ 2
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Question 1 of 20
1. Question
1 pointsThe remote sensing techniques applied for the earth’s surface features, is generally confined to the following wave lengths :
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Question 2 of 20
2. Question
1 pointsThe value of energy quantum for radiation of any frequency is proportional to :
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Question 3 of 20
3. Question
1 pointsA perfectly black body :
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Question 4 of 20
4. Question
1 pointsPick up the correct statement from the following :
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Question 5 of 20
5. Question
1 pointsPick up the correct statement from the following:
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Question 6 of 20
6. Question
1 pointsA and B are two towers of equal height diametrically opposite on either side of the nadir point, at 3 km and 5 km distances. Which one of the following statements is correct?
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Question 7 of 20
7. Question
1 pointsRemote sensing techniques makes use of the properties of—–emitted, reflected or diffracted by the sensed objects:
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Question 8 of 20
8. Question
1 pointsWhich one of the following parameters is accurate for DGPS.
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Question 9 of 20
9. Question
1 pointsThe most widely used antenna in GPS is
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Question 10 of 20
10. Question
1 points“An Electromagnetic wave falls on to a boundary between two loss less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media”. This phenomenon is known as :
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Question 11 of 20
11. Question
1 pointsThe reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared:
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Question 12 of 20
12. Question
1 pointsWhich one the following is a correct statement?
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Question 13 of 20
13. Question
1 pointsPick up the correct statement from the following :
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Question 14 of 20
14. Question
1 pointsWhich one of the following parameters is considered to determine the reflectance of a vegetation canopy
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Question 15 of 20
15. Question
1 pointsA reduction of nitrogen nutrient in plants :
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Question 16 of 20
16. Question
1 pointsPick up the correct statement from the following:
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Question 17 of 20
17. Question
1 pointsLeaf reflactance depends primarily on :
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Question 18 of 20
18. Question
1 pointsPick up the correct statement from the following
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Question 19 of 20
19. Question
1 pointsPick up the correct statement from the following:
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Question 20 of 20
20. Question
1 pointsPick up the correct statement from the following:
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Elements of Remote Sensing MCQ 3
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Question 1 of 20
1. Question
1 pointsWhich one of the following statements is correct?
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Question 2 of 20
2. Question
1 pointsThe interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:
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Question 3 of 20
3. Question
1 pointsThe normal altitude of GPS satellite is about
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Question 4 of 20
4. Question
1 pointsRepetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :
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Question 5 of 20
5. Question
1 pointsOrbital radius of GPS satellites is approximately:
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Question 6 of 20
6. Question
1 pointsWhich one of the following statement is incorrect regarding the electromagnetic radiation?
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Question 7 of 20
7. Question
1 pointsConsider the following statements regarding the satellite imaging : 1. The satellite orbit is fixed in the inertial space 2. During successive across-track imaging, the earth rotates beneath the sensor 3. The satellite images a skewed area Which one of the following statements is/are correct ?
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Question 8 of 20
8. Question
1 pointsIn GPS, receivers are used are ;
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Question 9 of 20
9. Question
1 pointsFormation of snow occurs if the cloud temperature is
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Question 10 of 20
10. Question
1 pointsIn case of reflection and refraction of electromagnetic radiation,
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Question 11 of 20
11. Question
1 pointsFor interpolation of satellite data used for monitoring dynamic changes that occure on the earth surface, the most suitable orbit for the satellite is :
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Question 12 of 20
12. Question
1 pointsThe altitudinal distance of a geostationary satelite from the earth is about:
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Question 13 of 20
13. Question
1 pointsGeodimeter is based on :
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Question 14 of 20
14. Question
1 pointsA passive sensor uses :
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Question 15 of 20
15. Question
1 pointsThe infrared portion of EMR lies between
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Question 16 of 20
16. Question
1 pointsWho coined the term, ‘Remote sensing’.
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Question 17 of 20
17. Question
1 pointsFor C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length lcoh is:
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Question 18 of 20
18. Question
1 pointsPick up the correct statement from the following:
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Question 19 of 20
19. Question
1 pointsThe optical property of a water body depends on:
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Question 20 of 20
20. Question
1 pointsCrop Acreage and Production Estimation (CAPE) was funded and taken up in 1983 by:
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Elements of Remote Sensing MCQ 4
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Question 1 of 20
1. Question
1 pointsThe ratio of the total solar radiant energy returned by a planetary body to the total radiant energy incident on the body, the called:
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Question 2 of 20
2. Question
1 pointsSpatial variation in horizontal and vertical directions, is caused due to :
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Question 3 of 20
3. Question
1 pointsThe code based GPS receivers are generally used for:
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Question 4 of 20
4. Question
1 pointsCritical angle of electromagnetic radiation takes place if
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Question 5 of 20
5. Question
1 pointsThe GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :
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Question 6 of 20
6. Question
1 pointsPick up the correct statement from the following:
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Question 7 of 20
7. Question
1 pointsPick up the correct statement from the following :
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Question 8 of 20
8. Question
1 pointsEarth observations from a satellite platform provides :
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Question 9 of 20
9. Question
1 pointsDue to scan geometery of a satellite sensor:
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Question 10 of 20
10. Question
1 points‘A time varrying electric field produces a magnetic field.’ This phenemenon is called:
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Question 11 of 20
11. Question
1 pointsThe maximum sun’s radiation occurs around:
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Question 12 of 20
12. Question
1 pointsPick up the correct statement from the following :
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Question 13 of 20
13. Question
1 pointsPick up the correct statement from the following:
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Question 14 of 20
14. Question
1 pointsWhich one of the following attributes is not associated with digital maps
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Question 15 of 20
15. Question
1 pointsThe object of photo-intepretation is:
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Question 16 of 20
16. Question
1 pointsDGPS 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
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Question 17 of 20
17. Question
1 pointsThe reflectance from a surface is called specular reflection if it follows: .
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Question 18 of 20
18. Question
1 pointsThe changes in the reflectivity/emis-sivity with time, is called :
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Question 19 of 20
19. Question
1 pointsPick up the correct statement from the following:
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Question 20 of 20
20. Question
1 pointsWhich one of the following factors does not affect the scale of the air photographs :
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