Elements of Remote Sensing MCQs

Question 1

Which one of the following residual biases involves the GPS accuracy?

Accepted Answer

All the above

Answer

Satellite dependent biases due to uncertainty in the orbital parameters of the satellite

Answer

Receiver-dependent biases due to clock stability with line

Answer

Signal propagation biases due to the sphere and troposphere propagation

Question 2

For interpolation of satellite data used for monitoring dynamic changes that occurs on the earth surface, the most suitable orbit for the satellite is:

Accepted Answer

Sun-synchronous orbit

Answer

Circular orbit

Answer

Near polar orbit

Answer

None of these

Question 3

The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from:

Accepted Answer

10-10 to 106 m

Answer

10-8 to 106 m

Answer

10-10 to 1010 m

Answer

10-8 to 108 m

Question 4

The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

Accepted Answer

Atmospheric window

Answer

Ozone hole

Answer

Ozone window

Answer

Black hole

Question 5

A reduction of nitrogen nutrient in plants:

Accepted Answer

All of these

Answer

Affects leaf color

Answer

Reduces pigment concentration

Answer

Increase the visible reflectivity

Question 6

Formation of snow occurs if the cloud temperature is

Accepted Answer

Below the freezing point

Answer

Just above the freezing point

Answer

At the freezing point

Answer

None of these

Question 7

The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :

Accepted Answer

24

Answer

8

Answer

12

Answer

16

Question 8

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

Accepted Answer

South arrow

Answer

Color

Answer

Symbology

Answer

Legends

Question 9

Repetitive observations of the same area at equal interval of time are useful to monitor the dynamic phenomena:

Accepted Answer

All of these

Answer

Cloud evolution

Answer

Vegetative cover

Answer

Snow cover