Q. Which of the following indicates the use of Zenith telescope?

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Q. If the index error is not large, error must be corrected.

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Q. Which of the following need not to be changed in case of box sextant?

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Q. Among the following, which doesn’t come under permanent adjustment of sextant?

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Q. Which of the following instruments can be used for locating inaccessible points?

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Q. Which classification of the sextant is used for navigation purposes?

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Q. Which of the following doesn’t serve as an optical requirement in case of sextant?

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Q. Which of the following can justify the principle of sextant?

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Q. Which of the following is not a classification of sextant?

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Q. Sextant can be used to measure vertical angles.

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Q. Which of the following can be used to sight two different objects simultaneously?

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Q. Apply correction for dip angle if the height of the observer at the sea level is given as 54m.

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Q. Which of the following is always subtractive?

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Q. Determine the corrected azimuth value if the azimuth is given as 54˚32ꞌ15ꞌꞌ having b = +23ꞌꞌ with vertical angle 29˚42ꞌ31ꞌꞌ.

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Q. 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.

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Q. Determine the correction for refraction if the angle of azimuth is given as 62˚21ꞌ24ꞌꞌ.

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Q. Find the altitude correction for semi-diameter which is having index error 25˚46ꞌ21ꞌꞌ and semi-diameter 0˚26ꞌ21ꞌꞌ.

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Q. Determine the index error for face right, if the face left and face right readings were given as 18˚24ꞌ52ꞌꞌ and 18˚23ꞌ24ꞌꞌ.

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Q. Correction to the dip is always_____________

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Q. Magnitude of refraction depends upon which of the following factors?

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