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Home Civil Engineering Elements of Remote Sensing Comments

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


  • Options
  • A. h > ?/? cos ?
  • B. h = ?/8 cos ?
  • C. h > ?/8 cos ?
  • D. h < ?/8 cos ?

  • Correct Answer
  • h > ?/8 cos ? 


  • Elements of Remote Sensing problems


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    • 1. Which one of the following statements regarding remote sensing is correct.

    • Options
    • A. The interaction of the electromagnetic radiation with the target
    • B. The emission of electromagnetic radiation from the target
    • C. both (a) and (b)
    • D. Neither (a) nor (b)
    • Discuss
    • 2. Electromagnetic radiation :

    • Options
    • 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
    • E. All of these
    • Discuss
    • 3. Remote sensing techniques makes use of the properties of-----emitted, reflected or diffracted by the sensed objects:

    • Options
    • A. electric waves
    • B. soundwaves
    • C. electromagnetic waves
    • D. wind waves
    • Discuss
    • 4. The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called :

    • Options
    • A. spectral variation
    • B. spatial variation
    • C. temporal variation
    • D. None of these .
    • Discuss
    • 5. The entire range of the electromagnetic spectrum spans a large spectrum of wave lengths varying from:

    • Options
    • A. 10-10 to 106 m
    • B. 10-8 to 106 m
    • C. 10-10 to 1010 m
    • D. 10-8 to 108 m
    • Discuss
    • 6. Pick up the correct statement from the following:

    • Options
    • A. Indian space effort started in 1962 with the establishment of a rocket.
    • B. Development of space (DOS) was established by the Government of India in 1972
    • C. Indian Space Research Organisation (ISRO) is responsible for the space technology and its application to various activities.
    • D. All of these
    • Discuss
    • 7. Pick up the correct statement from the following:

    • Options
    • A. In remote sensing technique, the observation place, is called a platform
    • B. Platforms may be either stationary or mobile
    • C. Spatial resolution of the imaging system becomes poorer with increase of platform height.
    • D. Area coverage of the imaging system increases with the increase of the platform altitude.
    • E. All of these
    • Discuss
    • 8. Which one of the following residual biases involves the GPS accuracy?

    • Options
    • 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
    • Discuss
    • 9. 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?

    • Options
    • 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
    • Discuss
    • 10. Which one the following is a correct statement?

    • Options
    • A. The vertical section of the soil extending into the parent material, is called profile
    • B. The layers of the soil parallel to the earth surface, are called horizons.
    • C. The transitional layer between two adjoining horizons, is called boundary.
    • D. All of these
    • Discuss


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