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Home Civil Engineering Elements of Remote Sensing Comments

  • Question
  • Which one of the following statements is correct?


  • Options
  • A. The function of an information system is to improve ones ability to make decisions
  • B. The information system is the chain of operations
  • C. A map is a collection of stored, analysed data, its stored information is suitability used in making decisions
  • D. All the above

  • Correct Answer
  • All the above 


  • Elements of Remote Sensing problems


    Search Results


    • 1. Which one of the following quantities forms the basis of radiometery?

    • Options
    • A. Radiant energy (Q)
    • B. Radiant flux (?)
    • C. Radiant intensity (I)
    • D. Radiance (L)
    • E. All of these
    • Discuss
    • 2. For interpolation of satellite data used for monitoring dynamic changes that occure on the earth surface, the most suitable orbit for the satellite is :

    • Options
    • A. circular orbit
    • B. sun-synchronous orbit
    • C. near polar orbit
    • D. None of these
    • Discuss
    • 3. Pick up the correct statement from the following:

    • Options
    • A. A graphical representation of spectral reflectance versis the various growth stages of a crop, depicts a phenologic pattern
    • B. The changes in the polarisation of the radiation reflected or emitted by an object, is known as polarisation variation.
    • C. The degree of polarisation is a characteristic of the object which helps in the identification of the object.
    • D. Signatures only provide statistical nature and are not completely deterministic
    • E. All of these
    • Discuss
    • 4. Pick up the correct statement from the following:

    • Options
    • A. Phytoplankton contains photosyn-thetically active pigment.
    • B. An increase of phytoplankton increases the back scattering in the green region
    • C. An increase of phytoplankton absorbs the bule region rapidly
    • D. An increase of phytoplankon decreases the back scattering in the green region
    • Discuss
    • 5. While propagating through homogeneous, isotropic media,

    • Options
    • A. directions of both the fields are orthogonal
    • B. both the fields are at right angles to the direction of propagation.
    • C. both (a) and (b)
    • D. niether (a) nor (b)
    • Discuss
    • 6. Due to scan geometery of a satellite sensor:

    • Options
    • A. the off-nadir resolution is degraded
    • B. the ground distance swept by the senor, IFOV is proportional to sec2?, where ? is the angle of scan measured from the nadir
    • C. the details towards the edge of the scan get compressed
    • D. All of these
    • Discuss
    • 7. The altitudinal distance of a geostationary satelite from the earth is about:

    • Options
    • A. 26, 000 km
    • B. 30, 000 km
    • C. 36, 000 km
    • D. 44, 000 km
    • Discuss
    • 8. Which one of the following geometric errors of satellite sensors is random?

    • Options
    • A. scan skew
    • B. panoramic distortion
    • C. earth rotation
    • D. altitude variation
    • Discuss
    • 9. 'A time varrying electric field produces a magnetic field.' This phenemenon is called:

    • Options
    • A. Hertz's law
    • B. Ampere Maxwell's law
    • C. Faraday's law
    • D. Kirchoff s law
    • Discuss
    • 10. Pick up the correct statement from the following :

    • Options
    • A. The first man-made satellite, Sputnikl' was launched on 4th October, 1957
    • B. The United State's Explorer 6 transmitted the first picture of the earth in August 1959
    • C. Television Infrared Observation Satellite (TIROS) designed for meteorological observations, started systematic earth observations from space from 1, April, 1960
    • D. U.S.A.'s highly secret mission CORONA started the collection of intelligence photograpy in 1960
    • E. All of these.
    • Discuss


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