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MCQs

Total Questions : 74 | Page 3 of 8 pages
Question 21. Find the altitude correction for semi-diameter which is having index error 25˚46ꞌ21ꞌꞌ and semi-diameter 0˚26ꞌ21ꞌꞌ.
  1.    26˚12ꞌ42ꞌꞌ
  2.    62˚12ꞌ42ꞌꞌ
  3.    26˚21ꞌ42ꞌꞌ
  4.    26˚12ꞌ24ꞌꞌ
 Discuss Question
Answer: Option A. -> 26˚12ꞌ42ꞌꞌ
Answer: (a).26˚12ꞌ42ꞌꞌ
Question 22. Determine the correction for parallax which has to be applied to 29˚42ꞌ31ꞌꞌ for obtaining altitude of the sun, which is given as 32˚41ꞌ15ꞌꞌ.
  1.    53˚51ꞌ
  2.    53˚15ꞌ
  3.    35˚51ꞌ
  4.    5˚51ꞌ
 Discuss Question
Answer: Option A. -> 53˚51ꞌ
Answer: (a).53˚51ꞌ
Question 23. Determine the correction for refraction if the angle of azimuth is given as 62˚21ꞌ24ꞌꞌ.
  1.    10˚11ꞌ50.74ꞌꞌ
  2.    0˚1ꞌ50.74ꞌꞌ
  3.    0˚1ꞌ0.74ꞌꞌ
  4.    50˚1ꞌ50.74ꞌꞌ
 Discuss Question
Answer: Option B. -> 0˚1ꞌ50.74ꞌꞌ
Answer: (b).0˚1ꞌ50.74ꞌꞌ
Question 24. Determine the index error for face right, if the face left and face right readings were given as 18˚24ꞌ52ꞌꞌ and 18˚23ꞌ24ꞌꞌ.
  1.    +24ꞌꞌ
  2.    +49ꞌꞌ
  3.    +4ꞌꞌ
  4.    +44ꞌꞌ
 Discuss Question
Answer: Option D. -> +44ꞌꞌ
Answer: (d).+44ꞌꞌ
Question 25. Determine the corrected azimuth value if the azimuth is given as 54˚32ꞌ15ꞌꞌ having b = +23ꞌꞌ with vertical angle 29˚42ꞌ31ꞌꞌ.
  1.    67˚39ꞌ40ꞌꞌ
  2.    67˚30ꞌ39.78ꞌꞌ
  3.    67˚39ꞌ39.78ꞌꞌ
  4.    76˚39ꞌ39.78ꞌꞌ
 Discuss Question
Answer: Option C. -> 67˚39ꞌ39.78ꞌꞌ
Answer: (c).67˚39ꞌ39.78ꞌꞌ
Question 26. Which of the following can be used to sight two different objects simultaneously?
  1.    Compass
  2.    Sextant
  3.    Theodolite
  4.    Abney level
 Discuss Question
Answer: Option B. -> Sextant
Answer: (b).Sextant
Question 27. Apply correction for dip angle if the height of the observer at the sea level is given as 54m.
  1.    23˚13ꞌ45.05ꞌꞌ
  2.    0˚3ꞌ45.05ꞌꞌ
  3.    0˚31ꞌ45.05ꞌꞌ
  4.    0˚13ꞌ45.05ꞌꞌ
 Discuss Question
Answer: Option D. -> 0˚13ꞌ45.05ꞌꞌ
Answer: (d).0˚13ꞌ45.05ꞌꞌ
Question 28. Which of the following is always subtractive?
  1.    Correction for reflection
  2.    Correction for dip
  3.    Correction for parallax
  4.    Correction for polarization
 Discuss Question
Answer: Option B. -> Correction for dip
Answer: (b).Correction for dip
Question 29. Sextant can be used to measure vertical angles.
  1.    True
  2.    False
  3.    May be True or False
  4.    Can't say
 Discuss Question
Answer: Option A. -> True
Answer: (a).True
Question 30. Which of the following is not a classification of sextant?
  1.    Box sextant
  2.    Nautical sextant
  3.    Vibrating sextant
  4.    Sounding sextant
 Discuss Question
Answer: Option C. -> Vibrating sextant
Answer: (c).Vibrating sextant

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