1 Created on November 17, 2022 By admin GE - Surveying - Field Astronomy 1 / 22 Position of a celestial body can be determined by Nadir Co-ordinates Azimuth Zenith 2 / 22 The horizon system depends on which of the following? Observer’s position Visible horizon Zenith Nadir 3 / 22 Determine the spherical excess, if the area of the triangle is given as 32sq. m with radius 65m. 1526.24 m 1562.42 m 1562.24 m 1652.24 m 4 / 22 Which of the following cases determine that the astronomical triangle is right angled? Star at horizon Star at culmination Star at elongation Star at prime vertical 5 / 22 Which of the following is obtained from astronomical triangle? Relation between spherical co-ordinates Relation between geometrical co-ordinates Relation between cylindrical co-ordinates Relation between rectangular co-ordinates 6 / 22 The culmination of the star depends upon which of the following factors? Zenith Meridian Altitude Horizon 7 / 22 The sign for the deflection angle depends upon Altitude Zenith Horizon Celestial body 8 / 22 Determine the latitude of the observer if the altitude of the pole is given as 23Ëš41ꞌ. 23Ëš41ꞌ 23Ëš14ꞌ 32Ëš41ꞌ 32Ëš14ꞌ 9 / 22 Find the difference of longitude between A = 30ËšE and B = 160ËšE. 30Ëš 130Ëš 310Ëš 13Ëš 10 / 22 Correction for parallax is given as Horizontal parallax * sin of apparent altitude Horizontal parallax * cos of apparent altitude Horizontal parallax * tan of apparent altitude Horizontal parallax * cot of apparent altitude 11 / 22 Express the hours (19h 42m 16s) in angles. 259Ëš34ꞌ 295Ëš34ꞌ 295Ëš43ꞌ 25Ëš34ꞌ 12 / 22 Which of the following indicates formula for green witch mean time? G.M.T = L.M.T ± longitude of the place G.M.T = L.M.T * longitude of the place G.M.T = L.M.T + longitude of the place G.M.T = L.M.T / longitude of the place 13 / 22 Which of the following doesn’t belong to the set of corrections applied in astronomical corrections? Correction of refraction Correction of parallax Correction of sag Correction of semi-diameter 14 / 22 Correction to the dip is always Additive Subtractive Zero Multiplicative 15 / 22 Apply correction for dip angle if the height of the observer at the sea level is given as 54m. 0Ëš3ꞌ45.05ꞌꞌ 0Ëš31ꞌ45.05ꞌꞌ 0Ëš13ꞌ45.05ꞌꞌ 23Ëš13ꞌ45.05ꞌꞌ 16 / 22 Which of the following can be used to sight two different objects simultaneously? Sextant Compass Theodolite Abney level 17 / 22 Which of the following is not a classification of sextant? Vibrating sextant Box sextant Nautical sextant Sounding sextant 18 / 22 Which of the following can justify the principle of sextant? α = β+2 α = β-2 β = α/2 α = β*2 19 / 22 If the index error is not large, error must be corrected. True False 20 / 22 Which of the following indicates the use of Zenith telescope? Zero error Low precision High precision Zenith placement 21 / 22 Zenith telescope has been replaced by Radio astronomical quasar Celestial telescope Astronomical telescope Abnormal telescope 22 / 22 Large zenith telescope is used at South America North America Australia India Your score is The average score is 27% LinkedIn Facebook Twitter VKontakte 0% Restart quiz Post navigation (quiz) GE – Surveying – Surveying Basics GE – Surveying – Chain Surveying
