Q.1
If θ is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to:
Q.2
The value of energy quantum for radiation of any frequency is proportional to:
Q.3
The altitudinal distance of a geostationary satellite from the earth is about:
Q.4
Which one of the following relationship between the wave length (λ), and frequency and the speed (C) of the electromagnetic wave is correct?
Q.5
Sensor IFOV is proportional to:
Q.6
The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
Q.7
Pick up the correct definition from the following with response to GIS.
Q.8
In the given figure the phase of
Elements of Remote Sensing mcq question image
Q.9
The phase difference of the waves 1 and 2 at A in the given figure is:
Elements of Remote Sensing mcq question image
Q.10

A 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?

  • Height displacement of A will be less than that of B
  • Height displacement of B will be less than that of A
  • Height displacement of A and B is equal
  • Height displacement of A and B will be towards each other
Q.11

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

  • Satellite dependent baises due to uncertainty in the orbital parameters of the satellite.
  • Receiver-depandent biases due to clock stability with line
  • Signal propagation baises due to the sphere and troposphere propogation.
  • All the above
Q.12

Remote sensing techniques makes use of the properties of-----emitted, reflected or diffracted by the sensed objects:

  • electric waves
  • soundwaves
  • electromagnetic waves
  • wind waves
Q.13

Pick up the correct definition from the following with response to GIS.

  • Common boundry between two areas of a locality is known as adjacency.
  • The area features which are wholly contained within another area feature, is known so containment.
  • The geometric property which describes the linkage between line features is defined as connectivity.
  • All of these.
Q.14

Which one of the following parameters is accurate for DGPS.

  • Positional accuracies ~ 1 - 2 m if rover is less than 1-2 km from the reference station
  • Positional accuracies ~ 2 - 5m if rover is less than 2-5 fm from the reference station
  • Positional accuracies ~ 5 - 10 m if rover is less than 5-10 km from reference station
  • Positional accuracies ~ 5 - 10 m if rover is less than 25 km
Q.15

Which one of the following errors is produced by platform characteristics of the sensor ?

  • altitude variation
  • altitude
  • orbit drift
  • All of these
Q.16

The most widely used antenna in GPS is

  • Parabolid antenna
  • Microstrip antenna
  • Horn antenna
  • Slotted antenna
Q.17

The coherence length over which there is a strong relationship between amplitudes is;

  • directly proportional to the bandwidth
  • inversely proportional to the bandwidth
  • the square of the bandwidth
  • none of these
Q.18

Which one of the following statements regarding remote sensing is correct.

  • The interaction of the electromagnetic radiation with the target
  • The emission of electromagnetic radiation from the target
  • both (a) and (b)
  • Neither (a) nor (b)
Q.19

In the given figure the phase of

  • crest A is π/2
  • B crossing is π
  • trough C is 3 π/2
  • All of these
Q.20

The various stages of formation of snow are listed below :
Formation of ice crystals
Formation of snow pallets
Formation of snow flakes
Formationof snow crystals
Formation of rimed crystals
Which one of the following sequences is correct ?

  • 3 2 5 1 4
  • 5 3 1 2 4
  • 1 4 3 5 2
  • 1 3 4 2 5
Q.21

"All bodies at temperatures above absolute zero degree emit electromagnetic radiation at different wave length", is known as:

  • Plank's law
  • Planktan's law
  • Lambert's cosine law
  • None of these
Q.22

Which one of the following is incorrect statement? While passing through the atmosphere, the solar radiation,

  • remains unaffected
  • gets scattered
  • gets absorbed partially
  • None of these
Q.23

Phytoplanktons :

  • are microscopic plants
  • are the first link in all the aquatic and marine food chains
  • convert solar energy, dissolved carbon and nitrogen into organic biomass
  • All of these
Q.24

Snow consists of

  • snow crystals
  • rimed snow crystals
  • snow flakes
  • All of these
Q.25

In which part of the reflective optical infrared region, the effect of multiple leaves in vegetation canopy is maximum ?

  • The near-IR (0.7 - 1.3 μm) region
  • The visible (0.4 - 0.7 μm) region
  • The short wave IR (1.3 - 2.7 μm) region
  • In all the above region
Q.26

The leaf area index (LAI) is :

  • one sided leaf area per unit area of the ground
  • two sided leaf area per -unit area of the ground
  • the average of the two sided area per unit area of the ground
  • None of these
Q.27

The maximum absorption of solar radiation due to ozone occurs at wave lengths:

  • shorter than 0.3 μm
  • shorter than 0.2 μm
  • greater than 0.3 μm
  • None of these
Q.28

For perfect coherent radiation, which one of the following statement is correct?

  • Both the waves must have single frequencies
  • The directions of motion of both waves are parallel.
  • The waves must be collimated
  • All of these
Q.29

Which one of the following statements is correct ?

  • The ratio of the permitivity of a medium and the free space, is called relative permitivity.
  • Dielectric constant is a pure number and has no dimensions.
  • The dielectric constant of pure water is 80.
  • Higher the dielectric constant of a medium, the poorer is its electric conductivity.
  • All of these
Q.30

In sun-light water poor in phyto plank tons appears :

  • deep blue
  • red
  • green
  • yellow
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