‘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 TRUE ANSWER : ? YOUR ANSWER : ?
The station pointer is generally used in Triangulation surveying Hydrographical surveying Astronomical surveying Photogrammetric surveying TRUE ANSWER : ? YOUR ANSWER : ?
Transit rule of adjusting the consecutive coordinates of a traverse is used where All of these angular measurements are more accurate than linear measurements linear and angular measurements of the traverse are of equal accuracy linear measurements are more accurate than angular measurements TRUE ANSWER : ? YOUR ANSWER : ?
The sidereal day is the time interval between two successive upper transits of First point of Aries The polar star First point of Libra Mean sun TRUE ANSWER : ? YOUR ANSWER : ?
If the staff is not held vertical at a level¬ling station, the reduced level calculated from the observation would be true R.L. less than true R.L. None of these more than true R.L. TRUE ANSWER : ? YOUR ANSWER : ?
The altitudes of a circumpolar star at culminations are 70° and 10°, both culminations being north of zenith. The latitude of the place, is 70° 40° 80° 60° TRUE ANSWER : ? YOUR ANSWER : ?
In the prismatic compass the magnetic needle and graduated circle do not move with the box the line of the sight does not move with the box the graduated circle is fixed to the box and the magnetic needle always remains in the N-S direction the magnetic needle moves with the box TRUE ANSWER : ? YOUR ANSWER : ?
A star may culminate at zenith if its declination is Equal to the latitude of the place None of these Less than the latitude of the place Greater than the longitude of the place TRUE ANSWER : ? YOUR ANSWER : ?
The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude: All listed here Vernal equinox True sun Mean sun TRUE ANSWER : ? YOUR ANSWER : ?
The distance between the minor control point and the principal point should be equal to Base line of the left photograph of stereo pair Mean of the base lines of the stereo pair Sum of the base lines of stereo pair Base line of the right photograph of stereo pair TRUE ANSWER : ? YOUR ANSWER : ?