Elements of Remote Sensing Objectives - Set 07 - ObjectiveBooks

Elements of Remote Sensing Objectives - Set 07

Practice Test: Question Set - 07

1. Electromagnetic radiation:
    (A) Produces a time varying magnetic field and vice versa
    (B) Once generated, remains self-propagating
    (C) Is capable to travel across space
    (D) All of these

2. Which one of the following residual biases involves the GPS accuracy?
    (A) Satellite dependent biases due to uncertainty in the orbital parameters of the satellite
    (B) Receiver-dependent biases due to clock stability with line
    (C) Signal propagation biases due to the sphere and troposphere propagation
    (D) All the above

3. ‘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

4. 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

5. 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?
    (A) 1, 2, 3
    (B) 1, 3
    (C) 2, 3
    (D) 1, 2

6. The GPS space segment consists of Navigation Satellite Timing and Ranging whose number is :
    (A) 8
    (B) 12
    (C) 16
    (D) 24

7. 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) All of these

8. Rayleigh's criteria for a rough surface is: (where letters carry their usual meanings).
    (A) h > λ/Δ cos θ
    (B) h = λ/8 cos θ
    (C) h > λ/8 cos θ
    (D) h < λ/8 cos θ

9. 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

10. Which one of the following statements is correct?
    (A) The function of an information system is to improve one’s ability to make decisions
    (B) The information system is the chain of operations
    (C) A map is a collection of stored, analyzed data, its stored information is suitability used in making decisions
    (D) All the above

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