List of practice Questions

What is the purpose of topology in GIS?
In a Landsat-8 scene, digital number (DN) values of a pixel in band-4, band-5 and band-10 are 80, 100 and 30, respectively. What would be the NDVI value for the same pixel (round off to 3 decimal places)?
The histogram equalization applied to a digital image generally DOES NOT yield a truly uniform histogram of the transformed image due to
It is easy to integrate GIS, Remote Sensing, and GPS technologies because these are
Which of the following rivers does not belong to North America?
What are the three type groups of vector data?
Small scale representation of map is known as
Which of the following statements about Principal Component Analysis (PCA) is CORRECT?
In a transit theodolite, the accidental error due to eccentricity of verniers is primarily counteracted by
Which rocks are formed from solidification and cooling of magma?
In the context of satellite image classification, which of the following statement is CORRECT?
For an overhanging cliff contour lines are
The ratio between the reflected to the incident energy on a surface at a particular wavelength gives the _____ of the surface
What is used to translate map measurement?
Which of these is NOT a division of the Ocean Floors?
The plan of a map was photo copied to a reduced size such that a line originally 100 mm, measures 90 mm. The original scale of the plan was 1:1000. The approximate revised scale is
Select the example of active sensor in remote sensing, from the following sensors
What causes the changes in seasons?
The interaction of the electromagnetic radiation produced by an instrument with a specific wavelength to illuminate a target on the terrain for studying its scattered radiance is called:
The phenomenon 'crab and drift' is associated with which method of survey
In India, the largest reserve of Bauxite is found in
Which of the following rocks may also contain fossils of plants, animals, and other microorganisms that once lived on them?
What is meant by the term 'spatial filtering' in remote sensing?
Which of the following statistical measures CANNOT be computed from the multispectral image histograms?
Radiocarbon dating technique is used to estimate the age of