Elements of Remote Sensing MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Elements of Remote Sensing, a fundamental topic in the field of Civil Engineering. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Elements of Remote Sensing MCQs are designed to help you grasp the core concepts and excel in solving problems.

In this section, you'll find a wide range of Elements of Remote Sensing mcq questions that explore various aspects of Elements of Remote Sensing problems. Each MCQ is crafted to challenge your understanding of Elements of Remote Sensing principles, enabling you to refine your problem-solving techniques. Whether you're a student aiming to ace Civil Engineering tests, a job seeker preparing for interviews, or someone simply interested in sharpening their skills, our Elements of Remote Sensing MCQs are your pathway to success in mastering this essential Civil Engineering topic.

Note: Each of the following question comes with multiple answer choices. Select the most appropriate option and test your understanding of Elements of Remote Sensing. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

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Elements of Remote Sensing MCQs | Page 3 of 15

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Q21.
"An Electromagnetic wave falls on to a boundary between two loss less homogeneous media with different refractive indices, a part of the wave is reflected back to the incident medium and the rest is transmitted on to the second media". This phenomenon is known as :

a.

Fresnel reflection

b.

Fresnel refraction

c.

Snell's law

d.

None of these

Discuss
Answer: (a).Fresnel reflection
Q22.
The various stages occuring in GPS system are described below :

1. Generation of an output to the user
2. Detection of the GPS signal
3. Processing the data in the built-in-computer
4. Decoding the GPS signal.

The correct sequence of the stages is :

a.

1, 2, 3, 4

b.

2, 3, 4, 1

c.

2, 4, 3, 1

d.

3, 1, 2 , 4

Discuss
Answer: (c).2, 4, 3, 1
Q23.
The reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared:

a.

visible (0.4 - 0.7 μm) region

b.

near-IR (0.7 - 1.3 μm) region

c.

short wave-IR (1.3 - 2.7 μm) region

d.

None of these

Discuss
Answer: (c).short wave-IR (1.3 - 2.7 μm) region
Q24.
Which one the following is a correct statement?

a.

The vertical section of the soil extending into the parent material, is called profile

b.

The layers of the soil parallel to the earth surface, are called horizons.

c.

The transitional layer between two adjoining horizons, is called boundary.

d.

All of these

Discuss
Answer: (d).All of these
Q25.
Leaf reflactance depends primarily on :

a.

the pigments

b.

internal cell structure

c.

equivalent water content

d.

All of these

Discuss
Answer: (d).All of these
Q26.
Pick up the correct statement from the following

a.

The ratio of the up flux and down flux just above the snow surface, is called albedo

b.

Spectral albedo of snow is calculated for the semi-infinite snow thickness

c.

Water equivalent height of snow is the height of water column obtained by melting snow.

d.

All of these

Discuss
Answer: (d).All of these
Q27.
Pick up the correct statement from the following:

a.

Permeability is a measure of conducting the magnetic lines of force in the material.

b.

Permeability is a measure of the extent to which magnetic lines of force can penetrate a medium.

c.

Permeability is expressed as the ratio of the magnetic flux density (B) to the field strength of the magnetizing field.

d.

All of these

Discuss
Answer: (d).All of these
Q28.
Pick up the correct statement from the following:

a.

In remote sensing technique, the observation place, is called a platform

b.

Platforms may be either stationary or mobile

c.

Spatial resolution of the imaging system becomes poorer with increase of platform height.

d.

All of these

Discuss
Answer: (d).All of these
Q29.
Which one of the following frequency regions is a part of sun's radiation?

a.

Ultraviolet frequency region

b.

Visible frequency region

c.

Infrared frequency region

d.

All of these

Discuss
Answer: (d).All of these
Q30.
The instruments which provide electromagnetic radiation of specified wave length or a band of wave lengths to illuminate the earth surface, are called :

a.

sensonrs

b.

passive sensors

c.

active sensors

d.

None of these

Discuss
Answer: (c).active sensors
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