Stadia Method Principle MCQ

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• Distance and elevation formulae for fixed hair method assuming the line of sight as horizontal and considering an external focusing type telescope is D = Ks + C. where C is _______
  ক

  f/i

  খ

  i/f

  গ

  f + c

  ঘ

  f – c
• For anallactic lens in D = Ks + C, which of the following is zero?
  ক

  D

  খ

  K

  গ

  C

  ঘ

  S
• Distance and elevation formulae for fixed hair method assuming line of sight as horizontal and considering an external focusing type telescope is D = Ks + C. where K is _______
  ক

  f/i

  খ

  i/f

  গ

  f + c

  ঘ

  f – c
• In fixed hair method, the distance between _______ hair and__________ hair are fixed.
  ক

  Upper and central

  খ

  Central and lower

  গ

  Upper and lower

  ঘ

  Lower, central and upper
• For short sights of about _____ m or less, an ordinary levelling staff may be used. For long sights, special staff called stadia rod is generally used.
  ক

  50

  খ

  100

  গ

  150

  ঘ

  200
• The magnifying power of the eyepiece is also smaller than for an ordinary transit to produce a clearer image of a staff held far away.
  ক

  True

  খ

  False
• What should be the aperture required for tacheometer?
  ক

  30mm

  খ

  40mm

  গ

  25mm

  ঘ

  15mm
• The magnification of the telescope in tacheometer should be at least _______ to _______ diameters.
  ক

  10 to 20

  খ

  10 to 30

  গ

  20 to 30

  ঘ

  20 to 40
• Which of horizontal hairs are equivalent in stadia diaphragm of tacheometer?
  ক

  Upper and central

  খ

  Central and lower

  গ

  Upper and lower

  ঘ

  Lower, central and upper
• Tacheometer has ______ number of horizontal hairs.
  ক

  2

  খ

  3

  গ

  4

  ঘ

  5
• Which of the following is the branch of angular surveying in which both the horizontal and vertical positions of points are determined from the instrumental observations, the chain surveys being entirely eliminated?
  ক

  Tacheometry

  খ

  Contouring

  গ

  Ranging

  ঘ

  Random line method
• Using tacheometric methods, elevations can also be determined.
  ক

  True

  খ

  False
• If the ground is undulating, rough, difficult and inaccessible. Under these circumstances _________ methods are used to obtain distances.
  ক

  Direct methods

  খ

  Indirect methods

  গ

  Chain surveying

  ঘ

  Tacheometry
• Horizontal distances are measured by direct methods, i.e. laying of chains or tapes on the ground.
  ক

  True

  খ

  False