Elements Of Remote Sensing Mcqs
This set of Civil Engineering Multiple Choice Questions & Answers (MCQs) focuses on “ Elements Of Remote Sensing ”. These Mcqs are chosen from a collection of most authoritative and best reference books on Civil Engineering. Our aim is to prepare an individual for competitive exams like NTS, GAT, ECAT, University and College entrance exams, Jobs and interviews. One should practice our MCQS to assimilate Elements Of Remote Sensing comprehensively.
32. Earth observations from a satellite platform provide____________?
Synoptic view of a large area
Constant solar zenith angles and similar illumination conditions
Repetitive observations of the same area with intervals of a few minutes to a few weeks
All of these
Answer & Solution
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33. Pick up the important characteristic of a target which facilitates its identification from the following ?
Spectral variation
Spatial variation
Temporal variation
All of these
Answer & Solution
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34. The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is_______________?
8
12
16
24
35. The value of energy quantum for radiation of any frequency is proportional to________________?
The frequency
The reciprocal of the energy
The square of the frequency
The square root of the frequency
Answer & Solution
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36. Which one of the following geometric errors of satellite sensors is random ?
Scan skew
Panoramic distortion
Earth rotation
Altitude variation
Answer & Solution
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37. Which one of the following frequency regions is a part of sun’s radiation ?
Ultraviolet frequency region
Infrared frequency region
Radio frequency region
All of these
Answer & Solution
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38. Which on speed C. of the electromagnetic wave is correct ?
C = v
C = /v
C = v
C = 1/
39. For C band Synthetic Aperture Radar (SAR) with Doppler band width of 1300 Hz, the coherence length loch is_____________?
130 km
230 km
250 km
500 km
40. In GPS, receivers used are___________________?
Electronic clocks
Atomic clocks
Quartz clocks
Mechanical clocks
Answer & Solution
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41. Which one of the following attributes is not associated with digital maps_______________?
Colour
Symbology
Legends
South arrow
Answer & Solution
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42. The most widely used antenna in GPS is_______________?
Parabolic antenna
Microstrip antenna
Horn antenna
Slotted antenna
Answer & Solution
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43. If electric permittivity and magnetic permeability of the medium are respectively and , then the velocity (Cm) of the electromagnetic wave in the medium is given by___________________?
Cm = 1/
Cm
Cm
None of these
44. Spatial variation in horizontal and vertical directions is caused due to_________________?
Physical weathering of rocks
Chemical weathering of rocks
Biological weathering of rocks
All of these
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45. The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target_________________?
Reduces the contrast of the image and also its sharpness
Increases the contrast of the image but reduces the sharpness
Increases both the contrast and sharpness
Reduces the contrast but increases the sharpness
Answer & Solution
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