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.

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Elements of Remote Sensing MCQs | Page 6 of 15

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Q51.
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
Q52.
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
Q53.
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
Q54.
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
Q55.
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
Q56.
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)
Q57.
Which one of the following statements is correct?

a.

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

b.

The information system is the chain of operations

c.

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

d.

All the above

Discuss
Answer: (d).All the above
Q58.
The interaction of the electromagnetic radiation produced with a specific wave length to illuminate a target on the terrain for studying its scattered radiance, is called:

a.

passive remote sensing

b.

active remote sensing

c.

neutral remote sensing

d.

None of these

Discuss
Answer: (b).active remote sensing
Q59.
The normal altitude of GPS satellite is about

a.

16, 200 km

b.

20, 200 km

c.

24, 400 km

d.

36, 100 km

Discuss
Answer: (b).20, 200 km
Q60.
Repetitive observations of the same area at equal interval of time, are useful to monitor the dynamic phenomena :

a.

Cloud evolution

b.

Vegetative cover

c.

Snow cover

d.

All of these

Discuss
Answer: (d).All of these
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