Surveying Archives

1. Polaris is usually observed for the determination of the azimuth when it is A. At culmination B. At elongation C. Neither at culmination nor at elongation D. Either at culmination or at elongation

At culmination

At elongation

Neither at culmination nor at elongation

Either at culmination or at elongation

Detailed SolutionPolaris is usually observed for the determination of the azimuth when it is A. At culmination B. At elongation C. Neither at culmination nor at elongation D. Either at culmination or at elongation

2. The position of the sun when its north declination is maximum is known as A. Vernal equinox B. Autumnal equinox C. Summer solstice D. Winter solstice

Vernal equinox

Autumnal equinox

Summer solstice

Winter solstice

Detailed SolutionThe position of the sun when its north declination is maximum is known as A. Vernal equinox B. Autumnal equinox C. Summer solstice D. Winter solstice

3. The sidereal day is the time interval between two successive upper transits of A. Mean sun B. First point of Aries C. First point of Libra D. The polar star

Mean sun

First point of Aries

First point of Libra

The polar star

Detailed SolutionThe sidereal day is the time interval between two successive upper transits of A. Mean sun B. First point of Aries C. First point of Libra D. The polar star

4. For any star to be a circumpolar star, its A. Declination must be 0Â° B. Declination must be 90Â° C. Distance from the pole must be less than the latitude of the observer D. Hour angle must be 180Â°

Declination must be 0Â°

Declination must be 90Â°

Distance from the pole must be less than the latitude of the observer

Hour angle must be 180Â°

Detailed SolutionFor any star to be a circumpolar star, its A. Declination must be 0Â° B. Declination must be 90Â° C. Distance from the pole must be less than the latitude of the observer D. Hour angle must be 180Â°

5. Pick up the correct statement from the following: A. The horizontal direction of the pole is called astronomical north B. The angle between the direction of true north and the direction of a survey line is called astronomical bearing C. The astronomical bearing is generally called azimuth D. All the above

The horizontal direction of the pole is called astronomical north

The angle between the direction of true north and the direction of a survey line is called astronomical bearing

The astronomical bearing is generally called azimuth

All the above

Detailed SolutionPick up the correct statement from the following: A. The horizontal direction of the pole is called astronomical north B. The angle between the direction of true north and the direction of a survey line is called astronomical bearing C. The astronomical bearing is generally called azimuth D. All the above

6. Pick up the correct statement from the following: A. The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph B. The difference between the absolute parallax of two points depends upon the difference in their elevations C. The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base D. All the above

The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph

The difference between the absolute parallax of two points depends upon the difference in their elevations

The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base

All the above

Detailed SolutionPick up the correct statement from the following: A. The measured stereoscopic base of photographs is obtained by dividing the air base in metres by the mean scale of the photograph B. The difference between the absolute parallax of two points depends upon the difference in their elevations C. The line joining the principal point of a photograph and the transferred principal point of the adjoining photograph, is called stereoscopic base D. All the above

7. The adjustment of horizontal cross hair is required particularly when the instrument is used for A. leveling B. prolonging a straight line C. measurement of horizontal angles D. all of the above

leveling

prolonging a straight line

measurement of horizontal angles

all of the above

Detailed SolutionThe adjustment of horizontal cross hair is required particularly when the instrument is used for A. leveling B. prolonging a straight line C. measurement of horizontal angles D. all of the above

8. Bowditch rule is applied to A. an open traverse for graphical adjustment B. a closed traverse for adjustment of closing error C. determine the effect of local attraction D. none of the above

an open traverse for graphical adjustment

a closed traverse for adjustment of closing error

determine the effect of local attraction

none of the above

Detailed SolutionBowditch rule is applied to A. an open traverse for graphical adjustment B. a closed traverse for adjustment of closing error C. determine the effect of local attraction D. none of the above

9. The displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is A. 4.4 mm B. 5.5 mm C. 6.5 mm D. 7.5 mm

4.4 mm

5.5 mm

6.5 mm

7.5 mm

Detailed SolutionThe displacement of the pictured position of a point of h elevation on a vertical photograph taken with a camera of 30 cm focal length, from an altitude of 3000 m, is A. 4.4 mm B. 5.5 mm C. 6.5 mm D. 7.5 mm

10. Which of the following statements is incorrect ? A. Error due to refraction may not be completely eliminated by reciprocal levelling. B. Tilting levels are commonly used for precision work. C. The last reading of levelling is always a foresight. D. All of the above statements are incorrect.

Error due to refraction may not be completely eliminated by reciprocal levelling.

Tilting levels are commonly used for precision work.

The last reading of levelling is always a foresight.

All of the above statements are incorrect.

Detailed SolutionWhich of the following statements is incorrect ? A. Error due to refraction may not be completely eliminated by reciprocal levelling. B. Tilting levels are commonly used for precision work. C. The last reading of levelling is always a foresight. D. All of the above statements are incorrect.