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MCQs

Total Questions : 112 | Page 6 of 12 pages
Question 51. The formula for calculating R.L can be given as _________
  1.    H.I+F.S
  2.    H.I-F.S
  3.    H.I-B.S
  4.    H.I+B.S
 Discuss Question
Answer: Option B. -> H.I-F.S
Answer: (b).H.I-F.S
Question 52. Which of the following indicates the formula for arithmetic check?
  1.    ΣB.S-ΣF.S=Last R.L-First R.L
  2.    ΣF.S-ΣB.S=Last R.L-First R.L
  3.    ΣB.S+ΣF.S=First R.L-Last R.L
  4.    ΣF.S+ΣB.S=Last R.L-First R.L
 Discuss Question
Answer: Option A. -> ΣB.S-ΣF.S=Last R.L-First R.L
Answer: (a).ΣB.S-ΣF.S=Last R.L-First R.L
Question 53. What is the elevation of a point, if the elevation of a benchmark is 200.852 m, back sight is 2.324 m, foresight is 1.836 m?
  1.    213.176
  2.    203.176
  3.    211.340
  4.    201.340
 Discuss Question
Answer: Option D. -> 201.340
Answer: (d).201.340
Question 54. If the observed back sight and fore sight are x1 and x2. The correction back sight on A will be equal to x1-y1, where y1= D1 tan i°. The correct fore sight on B will be equal to x2-y2 where, y2 = D2 tan i°. Then what is the correction difference in level between A and B.
  1.    x1 – x2
  2.    x2 – x1
  3.    x1 – x2 + (D2 tan i° – D1 tan i°)
  4.    x2 – x1 + (D1tan i° + D2 tan i°)
 Discuss Question
Answer: Option C. -> x1 – x2 + (D2 tan i° – D1 tan i°)
Answer: (c).x1 – x2 + (D2 tan i° – D1 tan i°)
Question 55. By balancing back sight and fore sight error due to non parallelism of the line of collimation can be eliminated.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 56. By balancing back sight and fore sight error due to curvature can be eliminated.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 57. By which of the following, the difference in elevation between two points can be calculated by taking a difference between the two readings and no correction for the inclination of the line of sight is necessary?
  1.    Levelling
  2.    Centering
  3.    Contouring
  4.    Balancing
 Discuss Question
Answer: Option D. -> Balancing
Answer: (d).Balancing
Question 58. If the observed back sight and fore sight are x1 and x2. The correction back sight on A will be equal to x1-y1, where y1= D1 tan i°. The correct fore sight on B will be equal to x2-y2 where, y2 = D2 tan i°. Then what is the correction difference in level between A and B, if D1 = D2?
  1.    x1 – x2
  2.    x2 + x1
  3.    x1 – x2 + (D2 tan i° – D1 tan i°)
  4.    x2 – x1 + (D1tan i° + D2 tan i°)
 Discuss Question
Answer: Option A. -> x1 – x2
Answer: (a).x1 – x2
Question 59. If the observed back sight and fore sight are 20 m and 18 m. The correction back sight on A will be equal to 16 m, The correct fore sight on B will be equal to 14 m where then what is the correction difference in level between A and B?
  1.    4 m
  2.    3 m
  3.    2 m
  4.    6 m
 Discuss Question
Answer: Option C. -> 2 m
Answer: (c).2 m
Question 60. If the staff reading at point A = ha and at a point B = hb. The correct staff reading should have been Ha and Hb, then the correction difference in elevation between A and B is given by _____
  1.    ha – hb
  2.    ha + hb
  3.    Ha – Hb
  4.    Ha + Hb
 Discuss Question
Answer: Option C. -> Ha – Hb
Answer: (c).Ha – Hb

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