Surveying ‘H’ is the flying height above mean ground level and ‘f’ is the principal distance of a vertical photograph. The mean scale of the photographs is f/H H. f H/f H + f f/H H. f H/f H + f ANSWER DOWNLOAD EXAMIANS APP
Surveying Limiting gradient for locating the base line on evenly-sloping ground, is 1 in 10 1 in 6 1 in 8 1 in 12 1 in 10 1 in 6 1 in 8 1 in 12 ANSWER DOWNLOAD EXAMIANS APP
Surveying Size of a theodolite is specified by the length of telescope the diameter of vertical circle the diameter of upper plate the diameter of lower plate the length of telescope the diameter of vertical circle the diameter of upper plate the diameter of lower plate ANSWER DOWNLOAD EXAMIANS APP
Surveying The correction for parallax, is - 8".8 cos α + 8".8 cos α - 8".8 cos α + .8" sin α - 8".8 cos α + 8".8 cos α - 8".8 cos α + .8" sin α ANSWER DOWNLOAD EXAMIANS APP
Surveying If altitude bubble is provided both on index frame as well as on telescope of a theodolite, then the instrument is levelled with reference toi) altitude bubble on index frameii) altitude bubble on index frame if it is to be used as a leveliii) altitude bubble on telescopeiv) altitude bubble on telescope if it is to be used as a levelThe correct answer is only (i) both (ii) and (iii) both (i) and (iv) only (iii) only (i) both (ii) and (iii) both (i) and (iv) only (iii) ANSWER DOWNLOAD EXAMIANS APP
Surveying With standard meridian as 82° 30' E the standard time at longitude 90° E is 8 h 30 m. The local mean time at the place will be 9 h 00 m 7 h 30 m 7 h 00 m 8 h 00 m 9 h 00 m 7 h 30 m 7 h 00 m 8 h 00 m ANSWER DOWNLOAD EXAMIANS APP