Questions and answers for exam Preparation

MCQs

Total Questions : 687 | Page 66 of 69 pages

Question 651. Which one of the following errors is produced by platform characteristics of the sensor ?

Altitude variation
Altitude
Orbit drift
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 652. Leaf reflectance depends primarily on______________?

The pigments
Internal cell structur
Equivalent water content
All of these

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 653. 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

Discuss Question

Answer: Option A. -> Height displacement of A will be less than that of B
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 654. 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°

Discuss Question

Answer: Option D. -> Angle of refraction is equal to 90°
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 655. 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

Discuss Question

Answer: Option A. -> 10-10 to 106 m
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 656. 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

Discuss Question

Answer: Option D. -> All the above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 657. 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

Discuss Question

Answer: Option A. -> 1, 2, 3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 658. 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

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 659. 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

Discuss Question

Answer: Option D. -> All of these
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

Question 660. 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___________________?