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MCQs

Total Questions : 2015 | Page 6 of 202 pages
Question 51. 23 cm × 23 cm photographs are taken from a flying height with a camera of focal length of 3600 m and 15.23 cm respectively. A parallax difference of 0.01 mm represents
  1.    1 m
  2.    2 m
  3.    4 m
  4.    8 m
 Discuss Question
Answer: Option A. -> 1 m
Question 52. The declination and right ascension of the sun becomes 23° 27' N and 90° respectively on
  1.    March 21
  2.    June 21
  3.    September 21
  4.    December 22
 Discuss Question
Answer: Option B. -> June 21
Question 53. The declination and right ascension of the sun becomes 23° 27' S and 270° respectively on
  1.    March 21
  2.    June 21
  3.    September 21
  4.    December 22
 Discuss Question
Answer: Option D. -> December 22
Question 54. The following sights are taken on a “turning point”
  1.    foresight only
  2.    backsight only
  3.    foresight and backsight
  4.    foresight and intermediate sight
 Discuss Question
Answer: Option C. -> foresight and backsight
Question 55. The horizontal angle between the true meridian and magnetic meridian at a place is called
  1.    azimuth
  2.    declination
  3.    local attraction
  4.    magnetic bearing
 Discuss Question
Answer: Option B. -> declination
Question 56. A ’level line’ is a
  1.    horizontal line
  2.    line parallel to the mean spheriodal surface of earth
  3.    line passing through the center of cross hairs and the center of eye piece
  4.    line passing through the objective lens and the eye-piece of a dumpy or tilting level
 Discuss Question
Answer: Option B. -> line parallel to the mean spheriodal surface of earth
Question 57. Accidental errors
  1.    Do not follow any definite mathematical law
  2.    Cannot be removed by applying corrections to the observed values
  3.    Are generally small
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 58. Pick up the correct statement from the following. The difference between the longitudes of the places is obtained.
  1.    By subtracting their longitudes if places are in the same hemisphere
  2.    By adding their longitudes if places are in the different hemispheres
  3.    By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
  4.    All the above
 Discuss Question
Answer: Option C. -> By subtracting the sum of their longitudes exceeding 180° from 360° if places are in different hemispheres
Question 59. Refraction correction
  1.    completely eliminates curvature correction
  2.    partially eliminates curvature correction
  3.    adds to the curvature correction
  4.    has no effect on curvature correction
 Discuss Question
Answer: Option B. -> partially eliminates curvature correction
Question 60. The number of horizontal cross wires in a stadia diaphragm is
  1.    one
  2.    two
  3.    three
  4.    four
 Discuss Question
Answer: Option C. -> three

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