# Advanced Surveying

mcqspedia.com has 71 Question/Answers about Topic Advanced Surveying

## A star may culminate at zenith if its declination is

- A. greater than the longitude of the place
- B. less than the latitude of the place
- C. equal to the latitude of the place
- D. none of these.
- Correct Answer: Option C

## The flying height of the camera is 1, 000 m above mean ground level, the distance of the top of a Minar from a nadir point is 10 cm and the relief displacement of Minar is 7.2 mm. The height of the Minar, is

- A. 52 m
- B. 72 m
- C. 62 m
- D. 82 m.
- Correct Answer: Option B

## The difference of height of two points whose parallax difference is 0.8 mm on a pair of stereo pair taken from a height H is 100 m. If mean photo base is 95.2 mm, the flying height is

- A. 8,000 m
- B. 10,000 m
- C. 14,000 m
- D. 12,000 m
- Correct Answer: Option D

## 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

- A. 0.01 second
- B. none of these.
- C. 0.001 second
- D. 0.0001 second
- Correct Answer: Option D

## To obtain photographs of an area of 1000 m average elevation, on scale 1 : 30, 000, with a camera of 30 cm focal length, the flying height is

- A. 4000 m
- B. 7000 m.
- C. 5000 m
- D. 6000 m
- Correct Answer: Option D

## Assuming human normal vision distance 25 cm, smallest measurable angle 20″, and introcular distance 6.5 cm, the smallest depth to be discerned is

- A. 1.00 mm
- B. 0.1 mm
- C. 0.5 mm
- D. 1.1 mm.
- Correct Answer: Option B

## On vertical photographs, height displacement is

- A. all
- B. negative for points below datum
- C. positive for points above datum
- D. zero for points vertically below the air station
- Correct Answer: Option A

## The prime vertical passes through

- A. all
- B. the zenith point of the observer
- C. the nadir point of horizon
- D. the west point of the horizon
- Correct Answer: Option A

## For adjusting a quadrilateral whose both the diagonals are observed, the equations of conditions involved, are

- A. one angle equation and three side equations
- B. two angle equations and two side equations
- C. three angle equations and one side equation
- D. none of these.
- Correct Answer: Option C

## The true and mean suns occupy the same meridian at the same time on

- A. September 1
- B. June 14
- C. December 25
- D. all
- Correct Answer: Option D

## If f is the focal length of the camera lens and θ is the angle of tilt, the distance of the plumb point from the principal point will be

- A. f sin θ
- B. f tan θ
- C. f sec θ.
- D. f cos θ
- Correct Answer: Option B

## Spring tides are caused when

- A. sun and moon are in line with earth
- B. solar tidal force acts opposite to lunar tidal force
- C. solar tidal force and lunar tidal force both coincide
- D. none of these.
- Correct Answer: Option C

## Rotation of the camera at exposure about its vertical axis, is known as

- A. swing
- B. tilt
- C. tip
- D. none of these.
- Correct Answer: Option C

## The main object of the astronomer to obtain

- A. astronomical latitude
- B. astronomical longitude
- C. astronomical bearing
- D. all
- Correct Answer: Option D

## Pick up the incorrect statement from the following. High oblique photographs

- A. may include the image of the horizon
- B. may not include the image of the horizon
- C. none of these.
- D. may have tilt up to 30°
- Correct Answer: Option C

## The average eye base is assumed as

- A. 62 mm
- B. 60 mm
- C. 64 mm
- D. 58 mm
- Correct Answer: Option C

## If the image of a triangulation station of R.L. 500 m is 4 cm from the principal point of a vertical photo taken from an altitude of 2000 m, above datum, the height displacement will be

- A. 6mm
- B. 2mm
- C. 8mm
- D. 10mm
- Correct Answer: Option D

## The station where observations are not made, but the angles at the station are used in triangulation series, is known as

- A. satellite station
- B. main station.
- C. pivot station
- D. subsidiary station
- Correct Answer: Option C

## The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as

- A. iso-centre
- B. ground plumb point
- C. ground principal point
- D. perspective centre.
- Correct Answer: Option B

## The following points form a pair of homologous points :

- A. Photo isocentre and ground isocentre
- B. Photo plumb point and ground plumb point
- C. all
- D. Photo principal point and ground principal point
- Correct Answer: Option C