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MCQs

Total Questions : 2015 | Page 9 of 202 pages
Question 81. Triangulation surveys are carried out for providing
  1.    Planimetric control
  2.    Height control
  3.    Both planimetric and height control
  4.    None of these
 Discuss Question
Answer: Option C. -> Both planimetric and height control
Question 82. The point at which sun's declination changes from north to south, is known as
  1.    First point of Aeries
  2.    First point of Libra
  3.    Vernal Equinox
  4.    Both (B) and (C) of the above
 Discuss Question
Answer: Option D. -> Both (B) and (C) of the above
Question 83. Contour interval is
  1.    The vertical distance between two consecutive contours
  2.    The horizontal distance between two consecutive contours
  3.    The vertical distance between two points on same contour
  4.    The horizontal distance between two points on same contour
 Discuss Question
Answer: Option A. -> The vertical distance between two consecutive contours
Question 84. Pick up the incorrect statement from the following. In a spherical triangle
  1.    Every angle is less than two right angles
  2.    Sum of the three angles is equal to two right angles
  3.    Sum of the three angles less than six right angles and greater than two right angles
  4.    Sum of any two sides is greater than the third
 Discuss Question
Answer: Option B. -> Sum of the three angles is equal to two right angles
Question 85. If ‘f’ is the focal length of the camera lens and ‘θ’ is the angle of tilt, the distance of the plumb point from the principal point will be
  1.    f sin θ
  2.    f cos θ
  3.    f tan θ
  4.    f sec θ
 Discuss Question
Answer: Option C. -> f tan θ
Question 86. If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be
  1.    2 mm
  2.    4 mm
  3.    6 mm
  4.    10 mm
 Discuss Question
Answer: Option D. -> 10 mm
Question 87. The process of turning the telescope about the vertical axis in horizontal plane is known as
  1.    transiting
  2.    reversing
  3.    plunging
  4.    swinging
 Discuss Question
Answer: Option D. -> swinging
Question 88. For mapping any country
  1.    Geodetic triangulation of greatest possible sides and accuracy is carried out
  2.    Primary triangles are broken down into secondary triangles of somewhat lesser accuracy
  3.    Secondary triangles are further broken into third and fourth order triangles, the points of which are used for detail surveys
  4.    All the above
 Discuss Question
Answer: Option D. -> All the above
Question 89. If a star whose declination is 60° N culminates at zenith, its altitude at the lower culmination, is
  1.    10°
  2.    20°
  3.    30°
  4.    40°
 Discuss Question
Answer: Option C. -> 30°
Question 90. In the prismatic compass
  1.    the magnetic needle moves with the box
  2.    the line of the sight does not move with the box
  3.    the magnetic needle and graduated circle do not move with the box
  4.    the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction
 Discuss Question
Answer: Option C. -> the magnetic needle and graduated circle do not move with the box

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