Elements of Remote Sensing MCQs

Question 1

Pick up the correct statement from the following :

Accepted Answer

An increase of phytoplankon decreases the back scattering in the green region

Answer

Phytoplankton contains photosynthetically active pigment.

Answer

An increase of phytoplankton increases the back scattering in the green region

Answer

An increase of phytoplankton absorbs the bule region rapidly

Question 2

In sun light, water rich in phytoplanktons appears :

Accepted Answer

green

Answer

red

Answer

brown

Answer

blue

Question 3

In sun-light water poor in phy-to plank tons appears :

Accepted Answer

deep blue

Answer

red

Answer

green

Answer

yellow

Question 4

With the increase of turbidity, the muddy water appears brown due to the shift of the upward radiance peak towards :

Accepted Answer

red

Answer

green

Answer

yellow

Answer

blue

Question 5

Pick up the correct statement from the following :

Accepted Answer

All of these

Answer

Water molecules and salt-ions in the ocean scatter the lower wave length more

Answer

An increase in the back scattering coefficient with shorter wave length gives a deep blue colour for clear oceanic water

Answer

The ratio of the upwelling irradiance just below the surface, and downwelling irradiance just above the surface is called reflectance ratio

Question 6

The information system is the chain of the following operations,1. Collection of data 2. Planning the observations 3. Analysis of data 4. Decision making process Which one of the chains is correct ?

Accepted Answer

2,1,3,4

Answer

4,1,2,3

Answer

3,2,1,4

Answer

1,3,4,2

Question 7

Which one of the following statements is correct ?

Accepted Answer

All the above

Answer

The function of an information system is to improve ones ability to make decisions

Answer

The information system is the chain of operations

Answer

A map is a collection of stored, analysed data, its stored information is suitability used in making decisions

Question 8

Which one of the following statements is not correct?

Accepted Answer

GIS technology is the same as traditional mapping

Answer

GIS technology is a tool box for processing maps and fundamental concepts for spatial measurement

Answer

GIS technology contains analytic capabilities for overlaying maps

Answer

GIS technology is capable to study the environmental surroundings

Question 9

Which one of the following attributes is not associated with digital maps

Accepted Answer

south arrow

Answer

colour

Answer

symbology

Answer

legends