EXAMIANS
After fixing the plane table to the tripod, the main operations which are needed at each plane table station are (i) Levelling (ii) Orientation (iii) CenteringThe correct sequence of these operations is
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Places having same latitude
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The adjustment of horizontal cross hair is required particularly when the instrument is used for
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The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above
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Longitudes are measured from 0° to
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The error due to eccentricity of inner and outer axes can be eliminated by
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In the cross-section method of indirect contouring, the spacing of cross-sections depends uponi) contour intervalii) scale of planiii) characteristics of groundThe correct answer is
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The rise and fall method of levelling provides a complete check on
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The stereo plotting instruments are generally manufactured on the principle of
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If ‘δ’ is the declination of the Polaris and ‘λ’ is the latitude of the place, the azimuth of the Polaris, is
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