Surveying α and β are the angles subtended by a point of elevation h at their air station with respective plumb points. Photo scale and focal length of the lens being ‘S’ and ‘f’ respectively. Parallax displacement of the point due to relief, is h tan β/S h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S h tan β/S h tan α/S h (tan α + tan β)/S h (tan α - tan β)/S ANSWER DOWNLOAD EXAMIANS APP
Surveying The most convenient co-ordinate system for specifying the relative positions of heavenly bodies on the celestial sphere, is Declination and altitude system Declination and right ascension system Altitude and azimuth system Declination and hour angle system Declination and altitude system Declination and right ascension system Altitude and azimuth system Declination and hour angle system ANSWER DOWNLOAD EXAMIANS APP
Surveying Normal tension is that pull which makes the correction due to sag equal to zero makes the correction due to pull equal to zero is used at the time of standardising the tape neutralizes the effect due to pull and sag makes the correction due to sag equal to zero makes the correction due to pull equal to zero is used at the time of standardising the tape neutralizes the effect due to pull and sag ANSWER DOWNLOAD EXAMIANS APP
Surveying 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 (iii), (i), (ii) (ii), (iii), (i) (i), (ii), (iii) (i), (iii), (ii) (iii), (i), (ii) (ii), (iii), (i) (i), (ii), (iii) (i), (iii), (ii) ANSWER DOWNLOAD EXAMIANS APP
Surveying The nearest star is so far away from the earth that the directions to it from two diametrically opposite points on the earth differs less than 0.001 second None of these 0.01 second 0.0001 second 0.001 second None of these 0.01 second 0.0001 second ANSWER DOWNLOAD EXAMIANS APP
Surveying For accurate work, the steel band should always be used in preference to chain because the steel band is practically inextensible and is not liable to kinks when in use can be easily repaired in the field is lighter than chain is easier to handle is practically inextensible and is not liable to kinks when in use can be easily repaired in the field is lighter than chain is easier to handle ANSWER DOWNLOAD EXAMIANS APP
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