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Civil Engineering Mcqs

The reflection of solar energy is characterised by the water content in the leaf, in the reflective optical infrared______________?

  • (A)  Visible (0.4 –
  • (B)  Near-IR (0.7 –
  • (C)  Short wave-IR (1.3 –
  • (D)  None of these
Submitted By :Ali Uppal


Due to perturbation of the orbit, satellite orbit parameters are frequently updated on measurements carried out by its_______________________?

  • (A)  Six ground stations
  • (B)  Five ground stations
  • (C)  Four ground stations
  • (D)  Three ground stations
Submitted By :Ali Uppal


The changes in the reflectivity/emissivity with time, is called ?

  • (A)  Spectral variation
  • (B)  Spatial variation
  • (C)  Temporal variation
  • (D)  None of these
Submitted By :Ali Uppal


Which one of the following helps to identify the objects on the earth surface ?

  • (A)  Atmospheric window
  • (B)  Signature
  • (C)  Radiometric error
  • (D)  None of these
Submitted By :Ali Uppal


Leaf reflectance depends primarily on______________?

  • (A)  The pigments
  • (B)  Internal cell structur
  • (C)  Equivalent water content
  • (D)  All of these
Submitted By :Ali Uppal


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

  • (A)  Altitude variation
  • (B)  Altitude
  • (C)  Orbit drift
  • (D)  All of these
Submitted By :Ali Uppal


Submitted By :Ali Uppal


Pick up the correct statement from the following_________________?

  • (A)  When the electric field oscillates in the direction of the electric vector, a plane polarised wave is formed
  • (B)  When the electric vector is in the plane of incidence, vertical polarisation is formed
  • (C)  When the electric vector is at right angles to the plane of incidence, horizontal polarization wave is formed
  • (D)  All of these
Submitted By :Ali Uppal


The arrangement of terrain features which provides attributes: the shape, size and texture of objects, is called_________________?

  • (A)  Spectral variation
  • (B)  Spatial variation
  • (C)  Temporal variation
  • (D)  None of these
Submitted By :Ali Uppal


Geodimeter is based on_________________?

  • (A)  Propagation of modulated light waves
  • (B)  Propagation of infrared radiation
  • (C)  The visible light as carrier with frequency of the order of 5 × 1014 Hz
  • (D)  High frequency radio waves
Submitted By :Ali Uppal