Practice Test: Question Set - 06
1. The height displacement on a vertical photograph
- (A) Increases as the horizontal distance increases from the principal point
- (B) Increases as the ground elevation increases
- (C) Decreases as the flying height increases
- (D) All the above
2. The distance between the minor control point and the principal point should be equal to
- (A) Base line of the left photograph of stereo pair
- (B) Base line of the right photograph of stereo pair
- (C) Sum of the base lines of stereo pair
- (D) Mean of the base lines of the stereo pair
3. The relation between the air base (B), photographic base (b), flying height (H) and the focal length (f) of a vertical photograph, is
- (A) B = bH/f
- (B) B =f/bH
- (C) B = b/fH
- (D) B = H/bf
4. The true and mean suns occupy the same meridian at the same time on
- (A) April 15
- (B) June 14
- (C) September 1
- (D) All the above
5. Latitude of a place is the angular distance from
- (A) Greenwich to the place
- (B) Equator to the poles
- (C) Equator to the nearer pole
- (D) None of these
6. The want of correspondence in stereo-photographs
- (A) Is a good property
- (B) Is a function of tilt
- (C) Is not affected by the change of flying height between photographs
- (D) Is minimum when θ is 3°
7. The hour angle of the heavenly body for Greenwich meridian equals the hour angle of the body for any other meridian + longitude:
- (A) Mean sun
- (B) True sun
- (C) Vernal equinox
- (D) All the above
8. The nautical mile is the length of
- (A) 1 minute of latitude
- (B) 1 minute of longitude
- (C) 1 degree of latitude
- (D) 1 degree of longitude
9. The necessary geometrical condition for triangulation adjustment is:
- (A) The sum of the angles around a station should be 360°
- (B) The sum of the three angles of a plane triangle should be 180°
- (C) The sum of the eight angles of a braced quadrilateral should be 360°
- (D) All the above
10. The great circle which passes through the zenith, nadir and the poles, is known as
- (A) Meridian
- (B) Vertical circle
- (C) Prime vertical
- (D) None of these
11. The point where vertical line passing through the perspective centre intersects the plane of the photograph, is known as
- (A) Photo plumb point
- (B) Plumb point
- (C) Nadir point
- (D) Isocenter
12. Stellar astronomy deals with
- (A) Plane surveying
- (B) Geodetic surveying
- (C) Star observations
- (D) Planet observations
13. The point where a vertical line through the optical centre of the camera lens intersects the ground, is known as
- (A) Ground principal point
- (B) Ground plumb point
- (C) Iso-centre
- (D) Perspective centre
14. The altitude of a heavenly body is its angular distance, measured on the vertical circle passing through the body, above
- (A) Equator
- (B) Horizon
- (C) Pole
- (D) None of these
15. 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