Elements of Remote Sensing - Section 1 (5)

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Elements of Remote Sensing - Section 1

Questions related to Element of Remote Sensing can be
found here in this section and you will get all necessary MCQs of this field.

33.

Which one of the following statements is correct regarding the GPS satellites ?

A.	The nominal altitude is about 20, 200 km
B.	The inclination of axis satellite is 55°
C.	The satellite transmits two L band signals (L1 with 1575.42 MHz and L2 with 1276.6 MHz)
D.	All of these

Answer: Option D

Explanation:

No answer description available for this question. Let us discuss.

34.

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

A.	sin2θ
B.	cos2θ
C.	sec2θ
D.	tan2θ

Answer: Option C

Explanation:

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35.

In the given figure the phase of 15-27-58

A.	crest A is π/2
B.	B crossing is π
C.	trough C is 3 π/2
D.	All of these

Answer: Option D

Explanation:

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36.

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

A.	directly proportional to the bandwidth
B.	inversely proportional to the bandwidth
C.	the square of the bandwidth
D.	none of these

Answer: Option B

Explanation:

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37.

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

A.	altitude variation
B.	altitude
C.	orbit drift
D.	All of these

Answer: Option D

Explanation:

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38.

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: Option D

Explanation:

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39.

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: Option D

Explanation:

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40.

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: Option A

Explanation:

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Elements of Remote Sensing - Section 1 (5)

Elements of Remote Sensing - Section 1

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