Elements of Remote Sensing Mcqs | Set 4

MCQs 1: Which one of the following errors is produced by platform characteristics of the sensor ?

Altitude variation

Altitude

Orbit drift

All of these

Answer Explanation

MCQs 2: Leaf reflectance depends primarily on______________?

The pigments

Internal cell structur

Equivalent water content

All of these

Answer Explanation

MCQs 3: Critical angle of electromagnetic radiation takes place if__________________?

Angle of incidence is equal to angle of refraction

Angle of incidence is greater than the angle of refraction

Angle of incidence is equal to 90°

Angle of refraction is equal to 90°

Answer Explanation

MCQs 4: Which one of the following residual biases involves the GPS accuracy ?

Satellite dependent biases due to uncertainty in the orbital parameters of the satellite

Receiver -dependent biases due to clock stability with line

Signal propagation biases due to the sphere and troposphere propagation

All the above

Answer Explanation

MCQs 5: The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from__________________?

10-10 to 106 m

10-8 to 106 m

10-10 to 1010 m

10-8 to 108 m

Answer Explanation

MCQs 6: Consider the following statements regarding the satellite imaging_________________?
1. The satellite orbit is fixed in the inertial space
2. During successive across-track imaging, the earth rotates beneath the sensor
3. The satellite images a skewed area
Which one of the following statements is/are correct?

1, 2, 3

1, 3

2, 3

1, 2

Answer Explanation

MCQs 7: 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 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

Answer Explanation

MCQs 8: Electromagnetic radiation_______________?

Produces a time varying magnetic field and vice versa

Once generated, remains self-propagating

Is capable to travel across space

All of these

Answer Explanation

MCQs 9: DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?

25 km

50 km

75 km

100 km

Answer Explanation

MCQs 10: Earth observations from a satellite platform provide____________?

Synoptic view of a large area

Constant solar zenith angles and similar illumination conditions

Repetitive observations of the same area with intervals of a few minutes to a few weeks

All of these

Answer Explanation

MCQs 1: Which one of the following errors is produced by platform characteristics of the sensor ?

MCQs 2: Leaf reflectance depends primarily on______________?

MCQs 3: Critical angle of electromagnetic radiation takes place if__________________?

MCQs 4: Which one of the following residual biases involves the GPS accuracy ?

MCQs 5: The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from__________________?

MCQs 7: 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?

MCQs 8: Electromagnetic radiation_______________?

MCQs 9: DGPS is based on the concept that bias errors in the position of locations in a given local area, are same if their distances are within___________________?

MCQs 10: Earth observations from a satellite platform provide____________?

Related Topics