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 5 of 15

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Q41.
Pick up the correct statement from the following :

a.

The distance between two successive crests or troughs of a wave, is called, the wave length

b.

The wave length is measured in metres and a fraction of a metre

c.

The wave length is generally denoted by ฮป

d.

All of these

Discuss
Answer: (d).All of these
Q42.
The basic requirement of any sensor system, is :

a.

radiometric resolution

b.

spatial resolution

c.

spectral resolution

d.

All of these

Discuss
Answer: (d).All of these
Q43.
Which one of the following helps to identify the objects on the earth surface ?

a.

atmospheric window

b.

signature

c.

radiometric error

d.

None of these

Discuss
Answer: (b).signature
Q44.
The spectral region of the electromagnetic radiation which passes through the atmosphere without much attenuation is known as:

a.

ozone hole

b.

atmospheric window

c.

ozone window

d.

black hole

Discuss
Answer: (b).atmospheric window
Q45.
Which one of the following statements is correct?

a.

During the day, earth reflects solar radiation

b.

During the day earth reflects both solar radiation the emission from its surface

c.

During the night, earth emits radiation from its surface

d.

All of these

Discuss
Answer: (d).All of these
Q46.
The remote sensing techniques applied for the earth's surface features, is generally confined to the following wave lengths :

a.

0.4 to 1.3, 1.5 to 1.8, 2.2 to 2.6 ฮผm

b.

2.2 to 2.6, 3.0 to 3.6, 4.2 to 5.0 ฮผm

c.

4.2 to 5.0, 7.0 to 15.0 ฮผm and 1 cm to 30 cm

d.

All of these

Discuss
Answer: (d).All of these
Q47.
The changes in the reflectivity/emis-sivity with time, is called :

a.

spectral variation

b.

spatial variation

c.

temporal variation

d.

None of these

Discuss
Answer: (c).temporal variation
Q48.
Pick up the correct statement from the following:

a.

Phytoplankton contains photosyn-thetically active pigment.

b.

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

c.

An increase of phytoplankton absorbs the bule region rapidly

d.

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

Discuss
Answer: (d).An increase of phytoplankon decreases the back scattering in the green region
Q49.
Which one of the following factors does not affect the scale of the air photographs :

a.

focal length

b.

flying height

c.

ground elevation

d.

None of these

Discuss
Answer: (d).None of these
Q50.
While propagating through homogeneous, isotropic media,

a.

directions of both the fields are orthogonal

b.

both the fields are at right angles to the direction of propagation.

c.

both (a) and (b)

d.

niether (a) nor (b)

Discuss
Answer: (c).both (a) and (b)
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