The semi-infinite snow albedo is proportional to the square root of the grain radius :

in the 0.8 to 1.2 Œºm wave length

in the 0.2 to 0.4 Œºm wave length region

in the 0.4 to 0.8 Œºm wave length region

in the 0.8 to 1.2 Œºm wave length

Which one of the following parameters is considered to determine the reflectance of a vegetation canopy

Number and arrangement of leaves

Which one of the following statement is incorrect regarding the electromagnetic radiation?

These are produced by the motion of electric charge

The oscillation of charged particles sets up changing electric fields.

The changing electric fields induce the changing magnetic fields in the surrounding medium.

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.

Electromagnetic waves are characterised by :

direction of travel and plane of polarisation.

A reduction of nitrogen nutrient in plants :

increase the visible reflectivity

A perfectly black body :

absorbs all the radiations of every wave lengths

emits power of every wave length

The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,

increases the contrast of the image but reduces the sharpness

reduces the contrast of the image and also its sharpness

increases the contrast of the image but reduces the sharpness

increases both the contrast and sharpness

reduces the contrast but increases the sharpness

The value of energy quantum for radiation of any frequency is proportional to :

the square root of the frequency

Electromagnetic radiation :

produces a time varying magnetic field and vice versa

once generated, remains self-propagat-ing.

is capable to travel across space

consists of magnetic and electric fields

Identification of crops is affected by:

the spectral characteristics of the sensor

the spatial characteristics of the sensor

the radio metric characteristics of the sensor

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.

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 B will be less than that of A

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

Which one of the following statements is correct ?

Snow albedo falls at all wave length with the increase of grain size

The effect of grain size on reflection is maximum in the near-IR region

The effect of grain size on reflection is low in the visible region of the spectrum

228 + Mcqs in Elements Of Remote Sensing in Civil Engineering Page 5 McqOptions

201.	The semi-infinite snow albedo is proportional to the square root of the grain radius :
A.	in the 0.2 to 0.4 Œºm wave length region
B.	in the 0.4 to 0.8 Œºm wave length region
C.	in the 0.8 to 1.2 Œºm wave length
D.	None of these
Answer» C. in the 0.8 to 1.2 Œºm wave length

Discussion

202.	Which one of the following parameters is considered to determine the reflectance of a vegetation canopy
A.	Solar zenith angle
B.	Azimuth angle
C.	Look angle
D.	Number and arrangement of leaves
Answer» E.

Discussion

203.	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.	Forest fires
Answer» E.

Discussion

204.	Which one of the following statement is incorrect regarding the electromagnetic radiation?
A.	These are produced by the motion of electric charge
B.	The oscillation of charged particles sets up changing electric fields.
C.	The changing electric fields induce the changing magnetic fields in the surrounding medium.
D.	None of these
Answer» E.

Discussion

205.	The code based GPS receivers are generally used for:
A.	Vehicle tracking
B.	Land navigation
C.	Trans movement
D.	All of these
Answer» E.

Discussion

206.	In the given figure the phase of
A.	crest A is œÄ/2
B.	B crossing is œÄ
C.	trough C is 3 œÄ/2
D.	All of these
Answer» E.

Discussion

207.	Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).
A.	h > Œª/Œî cos Œ∏
B.	h = Œª/8 cos Œ∏
C.	h > Œª/8 cos Œ∏
D.	h < Œª/8 cos Œ∏
Answer» D. h < Œª/8 cos Œ∏

Discussion

208.	The most widely used antenna in GPS is
A.	Parabolid antenna
B.	Microstrip antenna
C.	Horn antenna
D.	Slotted antenna
Answer» C. Horn antenna

Discussion

209.	Pick up the correct definition from the following with response to GIS.
A.	Common boundry between two areas of a locality is known as adjacency.
B.	The area features which are wholly contained within another area feature, is known so containment.
C.	The geometric property which describes the linkage between line features is defined as connectivity.
D.	All of these.
Answer» E.

Discussion

210.	Electromagnetic waves are characterised by :
A.	frequency
B.	wave length
C.	intensity
D.	direction of travel and plane of polarisation.
Answer» E.

Discussion

211.	A reduction of nitrogen nutrient in plants :
A.	affects leaf colour
B.	reduces pigment concentration
C.	increase the visible reflectivity
D.	All of these
Answer» E.

Discussion

212.	A perfectly black body :
A.	is a diffuse emitter
B.	absorbs all the radiations of every wave lengths
C.	emits power of every wave length
D.	All the above
Answer» E.

Discussion

213.	The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,
A.	reduces the contrast of the image and also its sharpness
B.	increases the contrast of the image but reduces the sharpness
C.	increases both the contrast and sharpness
D.	reduces the contrast but increases the sharpness
Answer» B. increases the contrast of the image but reduces the sharpness

Discussion

214.	Pick up the important characteristic of a target which facilitates its identification from the following:
A.	spectral variation
B.	spatial variation
C.	temporal variation
D.	polarisation variation
Answer» E.

Discussion

215.	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.	Radio frequency region
Answer» E.

Discussion

216.	The value of energy quantum for radiation of any frequency is proportional to :
A.	the frequency
B.	the reciprocal of the energy
C.	the square of the frequency
D.	the square root of the frequency
Answer» B. the reciprocal of the energy

Discussion

217.	Electromagnetic radiation :
A.	produces a time varying magnetic field and vice versa
B.	once generated, remains self-propagat-ing.
C.	is capable to travel across space
D.	consists of magnetic and electric fields
Answer» E.

Discussion

218.	The basic requirement of any sensor system, is :
A.	radiometric resolution
B.	spatial resolution
C.	spectral resolution
D.	temporal resolution
Answer» E.

Discussion

219.	The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from:
A.	10-10 to 106 m
B.	10-8 to 106 m
C.	10-10 to 1010 m
D.	10-8 to 108 m
Answer» B. 10-8 to 106 m

Discussion

220.	Identification of crops is affected by:
A.	the spectral characteristics of the sensor
B.	the spatial characteristics of the sensor
C.	the radio metric characteristics of the sensor
D.	All of these
Answer» E.

Discussion

221.	The refractive index of the ocean water:
A.	increases with salinity
B.	increases with temperature
C.	decreases with salinity
D.	decreases with temperature
Answer» B. increases with temperature

Discussion

222.	If 0 is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to :
A.	sin2Œ∏
B.	cos2Œ∏
C.	sec2Œ∏
D.	tan2Œ∏
Answer» D. tan2Œ∏

Discussion

223.	"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
Answer» B. Fresnel refraction

Discussion

224.	The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called :
A.	spectral variation
B.	spatial variation
C.	temporal variation
D.	None of these .
Answer» C. temporal variation

Discussion

225.	Leaf reflactance depends primarily on :
A.	the pigments
B.	internal cell structure
C.	equivalent water content
D.	All of these
Answer» E.

Discussion

226.	Which one of the following residual biases involves the GPS accuracy ?
A.	Satellite dependent baises due to uncertainty in the orbital parameters of the satellite.
B.	Receiver-depandent biases due to clock stability with line
C.	Signal propagation baises due to the sphere and troposphere propogation.
D.	All the above
Answer» E.

Discussion

227.	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?
A.	Height displacement of A will be less than that of B
B.	Height displacement of B will be less than that of A
C.	Height displacement of A and B is equal
D.	Height displacement of A and B will be towards each other
Answer» B. Height displacement of B will be less than that of A

Discussion

228.	Which one of the following statements is correct ?
A.	Snow albedo falls at all wave length with the increase of grain size
B.	The effect of grain size on reflection is maximum in the near-IR region
C.	The effect of grain size on reflection is low in the visible region of the spectrum
D.	All of these
Answer» E.

Discussion

Explore topic-wise MCQs in Civil Engineering.

The semi-infinite snow albedo is proportional to the square root of the grain radius :

Which one of the following parameters is considered to determine the reflectance of a vegetation canopy

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

Which one of the following statement is incorrect regarding the electromagnetic radiation?

The code based GPS receivers are generally used for:

In the given figure the phase of

Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).

The most widely used antenna in GPS is

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

Electromagnetic waves are characterised by :

A reduction of nitrogen nutrient in plants :

A perfectly black body :

The part radiation due to scattered/diffused radiation entering the field of view of a remote sensor other than that from the required target,

Pick up the important characteristic of a target which facilitates its identification from the following:

Which one of the following frequency regions is a part of sun's radiation?

The value of energy quantum for radiation of any frequency is proportional to :

Electromagnetic radiation :

The basic requirement of any sensor system, is :

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

Identification of crops is affected by:

The refractive index of the ocean water:

If 0 is the angle of scan measured from the nadir, the ground distance swept by the sensor IFOV is proportional to :

"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 :

The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called :

Leaf reflactance depends primarily on :

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

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?

Which one of the following statements is correct ?